diff --git a/lib/providers/wallet_options.dart b/lib/providers/wallet_options.dart
index 8a59d1554934db874ffd55def86713e8b1a4166e..c73ff4a71428e4c0453fdc42170481a36ef66cac 100644
--- a/lib/providers/wallet_options.dart
+++ b/lib/providers/wallet_options.dart
@@ -73,7 +73,7 @@ class WalletOptionsProvider with ChangeNotifier {
             Provider.of<MyWalletsProvider>(context, listen: false);
         final _defaultWallet = _myWalletProvider.getDefaultWallet();
         log.d(_defaultWallet.address);
-        await _sub.pay(
+        _sub.pay(
             fromAddress: wallet.address!,
             destAddress: _defaultWallet.address!,
             amount: -1,
diff --git a/lib/screens/transaction_in_progress.dart b/lib/screens/transaction_in_progress.dart
index 5bff32d9367655a8f9f950c5da3332de48f3b65f..858b3be5fdaf7ba1a7fc496274744d5c385a9eac 100644
--- a/lib/screens/transaction_in_progress.dart
+++ b/lib/screens/transaction_in_progress.dart
@@ -102,19 +102,19 @@ class TransactionInProgress extends StatelessWidget {
               case 'cert.NotRespectCertPeriod':
               case 'identity.CreatorNotAllowedToCreateIdty':
                 {
-                  _resultText +=
+                  _resultText =
                       "Vous devez attendre 24h entre chaque certification";
                 }
                 break;
               case 'cert.CannotCertifySelf':
                 {
-                  _resultText +=
+                  _resultText =
                       "Vous ne pouvez pas vous certifier\nvous même ...";
                 }
                 break;
               case 'identity.IdtyNameAlreadyExist':
                 {
-                  _resultText += "Ce nom est déjà pris";
+                  _resultText = "Ce nom est déjà pris";
                 }
                 break;
               case 'balances.KeepAlive':
@@ -129,12 +129,12 @@ class TransactionInProgress extends StatelessWidget {
                       "Vous devez alimenter ce compte avant\nde pouvoir l'utiliser";
                 }
                 break;
+
               case 'timeout':
                 {
                   _resultText += "Le délais d'éxecution est dépassé";
                 }
                 break;
-
               default:
                 {
                   _resultText += "\n$_exception";
diff --git a/lib/screens/wallet_view.dart b/lib/screens/wallet_view.dart
index 0a875ca1f1105d84aae5744b3a8057aac5ac7663..3c8b0653b1a4b3d8b876320848b3647c329f5dc9 100644
--- a/lib/screens/wallet_view.dart
+++ b/lib/screens/wallet_view.dart
@@ -423,11 +423,16 @@ class WalletViewScreen extends StatelessWidget {
           return StatefulBuilder(
               builder: (BuildContext context, StateSetter setState) {
             if (_walletViewProvider.payAmount.text != '' &&
-                double.parse(_walletViewProvider.payAmount.text) <=
+                (double.parse(_walletViewProvider.payAmount.text) + 2) <=
                     double.parse(
                         balanceCache[defaultWallet.address]!.split(' ')[0]) &&
                 _walletViewProvider.address != defaultWallet.address) {
-              canValidate = true;
+              if (balanceCache[pubkey] == '0.0 $currencyName' &&
+                  double.parse(_walletViewProvider.payAmount.text) < 5) {
+                canValidate = false;
+              } else {
+                canValidate = true;
+              }
             } else {
               canValidate = false;
             }
@@ -736,7 +741,8 @@ class WalletViewScreen extends StatelessWidget {
 
                 balance(context, pubkey!, 22),
                 const SizedBox(height: 10),
-                _walletOptions.idtyStatus(context, pubkey!, isOwner: false, color: Colors.black),
+                _walletOptions.idtyStatus(context, pubkey!,
+                    isOwner: false, color: Colors.black),
                 getCerts(context, pubkey!, 14),
 
                 // if (username == null &&