Here's what you can do:
- Call the number at the back of your card. Please confirm with the bank that your card has been enabled for online transactions and also request to enable a *Non 3D Checkout*.
- Wait 1 hour before making the payment again.
Alternatively, try making the payment with a different debit card or credit card (preferred). Note that online transactions via debit cards may not go through during the bank's maintenance hours between 12 am to 5 am.
Local banks have strict guidelines on debit cards, as it may decline subsequent transactions even though online transactions have been enabled previously.