diff --git a/src/App.tsx b/src/App.tsx
index aff238b..de183fc 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,16 +1,19 @@
 import { BrowserRouter, Routes, Route } from 'react-router-dom';
 import Cashier from '@/features/cashier/Cashier';
 import { CashierProvider } from '@/features/cashier/context/CashierContext';
+import CashierStateHandler from '@/features/cashier/CashierStateHandler/CashierStateHandler';
 import PaymentStatus from '@/pages/PaymentStatus/PaymentStatus';
 import '@/App.scss';
+import Status from './components/Status/Status';
 
 function App() {
   return (
     <div className="cashier-app">
       <BrowserRouter>
         <CashierProvider>
+          <CashierStateHandler />
           <Routes>
-            <Route path="/" element={<Cashier />} />
+            <Route path="/" element={<Cashier />} errorElement={<Status type="error" message="Error loading cashier" />} />
             <Route path="/result" element={<PaymentStatus />} />
           </Routes>
         </CashierProvider>
diff --git a/src/components/Loading/Loading.scss b/src/components/Loading/Loading.scss
index 810a9b2..309ef1f 100644
--- a/src/components/Loading/Loading.scss
+++ b/src/components/Loading/Loading.scss
@@ -8,12 +8,28 @@
 }
 
 .loading__spinner {
-  width: 40px;
-  height: 40px;
-  border: 4px solid #f3f3f3;
+  width: 48px;
+  height: 48px;
+  border: 4px solid rgba(100, 108, 255, 0.1);
   border-top: 4px solid #646cff;
+  border-right: 4px solid #646cff;
   border-radius: 50%;
-  animation: spin 1s linear infinite;
+  animation: spin 0.8s linear infinite;
+  position: relative;
+}
+
+.loading__spinner::before {
+  content: '';
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  width: 24px;
+  height: 24px;
+  margin: -12px 0 0 -12px;
+  border: 3px solid rgba(100, 108, 255, 0.2);
+  border-top: 3px solid #646cff;
+  border-radius: 50%;
+  animation: spin 0.6s linear infinite reverse;
 }
 
 @keyframes spin {
diff --git a/src/components/Loading/Loading.tsx b/src/components/Loading/Loading.tsx
index 26bbc10..feb0edc 100644
--- a/src/components/Loading/Loading.tsx
+++ b/src/components/Loading/Loading.tsx
@@ -1,10 +1,14 @@
 import './Loading.scss';
 
-function Loading() {
+interface ILoadingProps {
+  message?: string;
+}
+
+function Loading({ message = 'Loading payment methods...' }: ILoadingProps) {
   return (
     <div className="loading">
       <div className="loading__spinner"></div>
-      <p className="loading__text">Loading payment methods...</p>
+      <p className="loading__text">{message}</p>
     </div>
   );
 }
diff --git a/src/config/api.ts b/src/config/api.ts
index abf795b..a8ff1d2 100644
--- a/src/config/api.ts
+++ b/src/config/api.ts
@@ -12,13 +12,6 @@ export const TMerchant = {
 
 export type TMerchant = (typeof TMerchant)[keyof typeof TMerchant];
 
-export const MERCHANT_API_KEYS: Record<TMerchant, string> = {
-  [TMerchant.DATA_SPIN]: '10000000-0000-0000-0000-000000000001',
-  [TMerchant.WIN_BOT]: '20000000-0000-0000-0000-000000000002',
-  [TMerchant.VARK_SERVICES]: '30000000-0000-0000-0000-000000000003',
-  [TMerchant.BETRISE]: '40000000-0000-0000-0000-000000000004',
-};
-
 export const MERCHANT_IDS: Record<TMerchant, string> = {
   [TMerchant.DATA_SPIN]: '10000000-0000-0000-0000-000000000001',
   [TMerchant.WIN_BOT]: '20000000-0000-0000-0000-000000000002',
@@ -27,4 +20,4 @@ export const MERCHANT_IDS: Record<TMerchant, string> = {
 };
 
 // Default merchant (can be changed based on requirements)
-export const DEFAULT_MERCHANT = TMerchant.WIN_BOT;
+export const DEFAULT_MERCHANT = TMerchant.BETRISE;
diff --git a/src/config/cashierConfig.ts b/src/config/cashierConfig.ts
index 24510b9..c0113d1 100644
--- a/src/config/cashierConfig.ts
+++ b/src/config/cashierConfig.ts
@@ -41,10 +41,13 @@ export interface ICashierConfig {
 export function getCashierConfig(): ICashierConfig {
   const params = new URLSearchParams(window.location.search);
 
-  const config: ICashierConfig = {};
+  const config: ICashierConfig = {
+    paymentType: (params.get('payment_type') as 'deposit' | 'withdrawal') || 'deposit',
+  };
 
   // Payment type from URL (support both 'method' and 'payment_type' for backward compatibility)
   const method = params.get('method');
+
   const paymentType = params.get('payment_type') || method;
   if (paymentType === 'deposit' || paymentType === 'withdrawal') {
     config.paymentType = paymentType;
@@ -61,10 +64,13 @@ export function getCashierConfig(): ICashierConfig {
   if (amount && amount !== 'undefined') {
     const parsedAmount = parseFloat(amount);
     if (!isNaN(parsedAmount)) {
-      config.amount = parsedAmount;
+      config.amount = 200;
     }
   }
 
+  // TODO: remove this default value
+  config.amount = 200;
+
   // Account from URL (for withdrawal)
   const account = params.get('account');
   if (account) {
@@ -81,6 +87,9 @@ export function getCashierConfig(): ICashierConfig {
   if (userId) {
     config.userId = userId;
   }
+  // TODO: remove this default value
+  config.userId = '12345';
+
 
   const sessionId = params.get('sessionId');
   if (sessionId) {
diff --git a/src/features/cashier/Cashier.tsx b/src/features/cashier/Cashier.tsx
index 687aa9c..d14ab1e 100644
--- a/src/features/cashier/Cashier.tsx
+++ b/src/features/cashier/Cashier.tsx
@@ -1,9 +1,6 @@
-import { useEffect } from 'react';
 import PaymentMethodsList from '@/features/payment-methods/PaymentMethodsList/PaymentMethodsList';
 import EmptyPaymentMethods from '@/features/payment-methods/EmptyPaymentMethods/EmptyPaymentMethods';
 import PaymentForm from './PaymentForm/PaymentForm';
-import Loading from '@/components/Loading/Loading';
-import Status from '@/components/Status/Status';
 import type { IPaymentMethod } from '@/features/payment-methods/types';
 import type { IPaymentRequest } from './types';
 import { useCashier } from './context/CashierContext';
@@ -16,26 +13,22 @@ function Cashier() {
     currencies,
     selectedMethod,
     formMetadata,
-    error,
-    paymentUrl,
-    goBack,
     setSelectedMethod,
     initiatePayment,
   } = useCashier();
 
-  // Redirect to payment URL when state is redirecting
-  useEffect(() => {
-    if (state === 'redirecting' && paymentUrl) {
-      window.location.href = paymentUrl;
-    }
-  }, [state, paymentUrl]);
-
   const handleMethodSelect = (method: IPaymentMethod) => {
     setSelectedMethod(method);
   };
 
   const handleFormSubmit = async (formData: Record<string, unknown>) => {
     try {
+      const config = getCashierConfig();
+
+      if (!config.userId) {
+        return;
+      }
+
       // Transform form data to match IPaymentRequest structure
       const additionalFields: Record<string, unknown> = {};
       if (formData.account) {
@@ -59,13 +52,14 @@ function Cashier() {
         }
       });
 
+
       const paymentRequest: Omit<IPaymentRequest, 'merchant_id'> = {
         payment_type: (formData.payment_type as 'deposit' | 'withdrawal') || 'deposit',
         method: (formData.method as string) || '',
         currency: (formData.currency as string) || '',
         amount: (formData.amount as number) || 0,
         customer: (formData.customer as IPaymentRequest['customer']) || {
-          id: '',
+          id: config.userId || '',
           first_name: '',
           last_name: '',
           email: '',
@@ -83,19 +77,7 @@ function Cashier() {
     setSelectedMethod(null);
   };
 
-  if (state === 'loading') {
-    return <Loading />;
-  }
-
-  if (state === 'error' && error) {
-    return <Status type="error" message={`Error: ${error.message}`} onAction={() => goBack()} />;
-  }
-
-  if (state === 'redirecting') {
-    return <div>Redirecting to payment...</div>;
-  }
-
-  if (selectedMethod) {
+  if (selectedMethod && state === 'ready' && methods.length > 0) {
     return (
       <PaymentForm
         key={selectedMethod.code}
@@ -105,7 +87,7 @@ function Cashier() {
         config={getCashierConfig()}
         onSubmit={handleFormSubmit}
         onBack={handleBack}
-        isLoading={state === 'submitting'}
+        isLoading={false}
       />
     );
   }
diff --git a/src/features/cashier/CashierStateHandler/CashierStateHandler.tsx b/src/features/cashier/CashierStateHandler/CashierStateHandler.tsx
new file mode 100644
index 0000000..6bc5238
--- /dev/null
+++ b/src/features/cashier/CashierStateHandler/CashierStateHandler.tsx
@@ -0,0 +1,43 @@
+import { useEffect } from 'react';
+import { useLocation } from 'react-router-dom';
+import Loading from '@/components/Loading/Loading';
+import Status from '@/components/Status/Status';
+import { useCashier } from '../context/CashierContext';
+
+function CashierStateHandler() {
+  const { state, error, paymentUrl, goBack } = useCashier();
+  const location = useLocation();
+  const isCashierRoute = location.pathname === '/';
+
+  // Redirect to payment URL when state is redirecting
+  useEffect(() => {
+    if (state === 'redirecting' && paymentUrl) {
+      window.location.href = paymentUrl;
+    }
+  }, [state, paymentUrl]);
+
+  if (!isCashierRoute) {
+    return null;
+  }
+
+  if (state === 'loading') {
+    return <Loading message="Loading payment methods..." />;
+  }
+
+  if (state === 'submitting') {
+    return <Loading message="Processing payment..." />;
+  }
+
+  if (state === 'error' && error) {
+    return <Status type="error" message={`Error: ${error.message}`} onAction={() => goBack()} />;
+  }
+
+  if (state === 'redirecting') {
+    return <Loading message="Redirecting to payment..." />;
+  }
+
+  return null;
+}
+
+export default CashierStateHandler;
+
diff --git a/src/features/cashier/PaymentForm/PaymentForm.tsx b/src/features/cashier/PaymentForm/PaymentForm.tsx
index 575550b..08be8e0 100644
--- a/src/features/cashier/PaymentForm/PaymentForm.tsx
+++ b/src/features/cashier/PaymentForm/PaymentForm.tsx
@@ -41,7 +41,7 @@ function PaymentForm({
       type: config?.paymentType || 'deposit',
       method: method.code,
       currency: currencies.length > 0 ? currencies[0]?.code : '',
-      amount: '',
+      amount: config?.amount || 0,
     };
 
     // Initialize customer fields from config
@@ -52,7 +52,6 @@ function PaymentForm({
     return initial;
   });
 
-  console.log('currencies', currencies);
   const parsedFields = useMemo(() => {
     if (formMetadata?.length === 0) return [];
     return parseFormFields(formMetadata);
@@ -80,7 +79,15 @@ function PaymentForm({
         return '';
       }
     }
-    return String(current || '');
+    // Handle numeric values including 0, and null/undefined
+    if (current === null || current === undefined) {
+      return '';
+    }
+    // For number inputs, preserve numeric values including 0
+    if (field.inputType === 'number' && typeof current === 'number') {
+      return String(current);
+    }
+    return String(current);
   };
 
   const setFieldValue = (field: IParsedField, value: string): void => {
@@ -92,31 +99,6 @@ function PaymentForm({
     const value = getFieldValue(field);
     const fieldId = `field-${field.code}`;
 
-    if (field.inputType === 'radio' && field.code === 'type') {
-      return (
-        <div key={field.code} className={bem(block, 'radio-group')}>
-          <label className={bem(block, 'radio')}>
-            <input
-              type="radio"
-              value="deposit"
-              checked={value === 'deposit'}
-              onChange={e => setFieldValue(field, e.target.value)}
-            />
-            <span>Deposit</span>
-          </label>
-          <label className={bem(block, 'radio')}>
-            <input
-              type="radio"
-              value="withdrawal"
-              checked={value === 'withdrawal'}
-              onChange={e => setFieldValue(field, e.target.value)}
-            />
-            <span>Withdrawal</span>
-          </label>
-        </div>
-      );
-    }
-
     if (field.inputType === 'select' && field.code === 'currency') {
       return (
         <div key={field.code} className={bem(block, 'field')}>
@@ -202,8 +184,6 @@ function PaymentForm({
     onSubmit(submitData);
   };
 
-  const showPaymentType = !config.paymentType && groupedFields.payment.some(f => f.code === 'type');
-
   return (
     <div className={block}>
       <div className={bem(block, 'header')}>
@@ -215,13 +195,6 @@ function PaymentForm({
       </div>
 
       <form className={bem(block, 'form')} onSubmit={handleSubmit}>
-        {showPaymentType && groupedFields.payment.some(f => f.code === 'type') && (
-          <div className={bem(block, 'section')}>
-            <h3 className={bem(block, 'section-title')}>Payment Type</h3>
-            {groupedFields.payment.filter(f => f.code === 'type').map(renderField)}
-          </div>
-        )}
-
         {groupedFields.payment.filter(f => f.code !== 'type' && f.code !== 'method').length > 0 && (
           <div className={bem(block, 'section')}>
             <h3 className={bem(block, 'section-title')}>Payment Information</h3>
diff --git a/src/features/cashier/services/CashierService.ts b/src/features/cashier/services/CashierService.ts
index c76d1a2..1bc69a9 100644
--- a/src/features/cashier/services/CashierService.ts
+++ b/src/features/cashier/services/CashierService.ts
@@ -59,7 +59,7 @@ class CashierService {
     if (method) {
       try {
         const config = getCashierConfig();
-        const paymentType = config.paymentType || 'deposit';
+        const paymentType = config.paymentType || 'withdrawal';
 
         // Fetch form metadata and currencies for the selected method in parallel
         const [formMetadataData, currenciesData] = await Promise.all([
diff --git a/src/features/cashier/utils/formBuilder.ts b/src/features/cashier/utils/formBuilder.ts
index bc09637..31c0c5e 100644
--- a/src/features/cashier/utils/formBuilder.ts
+++ b/src/features/cashier/utils/formBuilder.ts
@@ -53,6 +53,11 @@ export function shouldShowField(
   if (code === 'currency' && !config.currency) return true;
   if (code === 'currency' && config.currency) return false;
 
+  // Hide customer.id field - it's set programmatically from config
+  if (code === 'customer.id' || (field.path[0] === 'customer' && field.path[1] === 'id')) {
+    return false;
+  }
+
   // Show all other fields
   return true;
 }
diff --git a/src/services/api.ts b/src/services/api.ts
index 5f897ef..976aa70 100644
--- a/src/services/api.ts
+++ b/src/services/api.ts
@@ -1,4 +1,4 @@
-import { API_BASE_URL, MERCHANT_API_KEYS, TMerchant, DEFAULT_MERCHANT } from '@/config/api';
+import { API_BASE_URL, MERCHANT_IDS, TMerchant, DEFAULT_MERCHANT } from '@/config/api';
 import type {
   IApiMethodsResponse,
   IApiCurrency,
@@ -16,7 +16,7 @@ class ApiService {
   private currencies: IApiCurrency[] = []; // Cache for currencies without method filter
 
   private getAuthHeader(merchant: TMerchant = DEFAULT_MERCHANT): HeadersInit {
-    const apiKey = MERCHANT_API_KEYS[merchant];
+    const apiKey = MERCHANT_IDS[merchant];
     return {
       Authorization: `Bearer ${apiKey}`,
       'Content-Type': 'application/json',
@@ -88,6 +88,7 @@ class ApiService {
       type,
     });
 
+    console.log('params', params.toString());
     const response = await fetch(`${API_BASE_URL}/form?${params.toString()}`, {
       method: 'GET',
       headers: this.getAuthHeader(merchant),