bug fixes on UI

lib/screens/transaction_controller.dart

@@ -39,6 +39,7 @@ class TransactionModel {
     providerImage: '',
     userId: '',
     providerLabel: '',
+    region: '',
   );
   String paymentStatus = 'PENDING';
   String pollStatus = 'PENDING';
@@ -77,6 +78,7 @@ abstract class FormData with _$FormData {
     String? gatewayCharge,
     String? tax,
     String? totalAmount,
+    String? region,
   }) = _FormData;
 
   factory FormData.fromJson(Map<String, dynamic> json) =>
@@ -143,6 +145,7 @@ class TransactionController extends ChangeNotifier {
       providerImage: '',
       userId: '',
       providerLabel: '',
+      region: '',
     );
 
     notifyListeners();