If your payment was declined when replenishing the main account using a bank card, contact technical support via the online chat or by other means. Please provide your personal and payment details:

1) full name,
2) the first 6 and last 4 digits of the card number,
3) the payment amount,
4) the payment date,
5) e-mail.
 
Inform the technical support operator about which back office merchant you used to pay with a card, or attach the screenshot with the error message.