diff --git a/lib/buy/dfx/dfx_buy_provider.dart b/lib/buy/dfx/dfx_buy_provider.dart
index 8bb0648e2..daca9fc33 100644
--- a/lib/buy/dfx/dfx_buy_provider.dart
+++ b/lib/buy/dfx/dfx_buy_provider.dart
@@ -78,7 +78,7 @@ class DFXBuyProvider extends BuyProvider {
 
   Future<String> auth() async {
     final signMessage = await getSignature(
-        await getSignMessage()); //TODO: Sign message does not work for LTC and BCH
+        await getSignMessage());
 
     final requestBody = jsonEncode({
       'wallet': walletName,
@@ -230,7 +230,7 @@ class DFXBuyProvider extends BuyProvider {
       paymentMethod = normalizePaymentMethod(paymentType);
       if (paymentMethod == null) paymentMethod = paymentType.name;
     } else {
-      paymentMethod = 'Card';
+      paymentMethod = 'Bank';
     }
 
     final action = isBuyAction ? 'buy' : 'sell';
diff --git a/lib/buy/onramper/onramper_buy_provider.dart b/lib/buy/onramper/onramper_buy_provider.dart
index 98cc8498f..53e0b1647 100644
--- a/lib/buy/onramper/onramper_buy_provider.dart
+++ b/lib/buy/onramper/onramper_buy_provider.dart
@@ -254,7 +254,7 @@ class OnRamperBuyProvider extends BuyProvider {
     switch (tag) {
       case 'OMNI':
         return tag;
-      case 'POLY':
+      case 'POL':
         return 'POLYGON';
       default:
         return CryptoCurrency.fromString(tag).fullName ?? tag;