Common reasons for failed payments often include:

1- Insufficient funds or exceeded daily limits.

2- Incorrect card information entered.

3- Card not authorized for online transactions or has expired.

4- Billing address mismatch.

5- Account frozen, or card reported lost/stolen.

6- Payment blocked by the issuing bank's risk/fraud settings.

To ensure smooth transactions:

1-Verify sufficient funds and check for daily limit restrictions.

2- Double-check all card details entered, including the expiration date and CVV code.

3- Confirm with your bank that your card is enabled for online purchases.