ironing out erp bugs

lib/screens/transaction_controller.dart

@@ -15,7 +15,6 @@ class TransactionModel {
   BillProvider? selectedProvider;
   Map<String, dynamic>? receiptData;
   FormData formData = FormData(
-    id: '',
     type: '',
     billClientId: '',
     debitRef: '',
@@ -48,9 +47,9 @@ class TransactionModel {
 @freezed
 abstract class FormData with _$FormData {
   const factory FormData({
+    String? id,
     required String type, // CONFIRM, REQUEST, REVERSE
     required String billClientId,
-    required String id,
     required String debitRef,
     required String debitCurrency,
     required String amount,
@@ -117,7 +116,7 @@ class TransactionController extends ChangeNotifier {
 
   clearFormData() {
     model.formData = FormData(
-      id: '',
+      id: null,
       type: '',
       billClientId: '',
       debitRef: '',