First of all, please try to pay from another browser. If this doesn't work you need to contact your bank. Make sure they don't stop the payment because of the following reasons:
1. Not enough funds in the account.
2. Maximum daily limit set by the bank for a transaction.
3. Default block on international transfers – check your bank to ensure they allow international transfers with your card.
4. Your bank requires you to activate 3-D secure, a feature that we support. 3-D secure is an extra layer of security where you are redirected to your bank to submit a personal pin code in order to identify the buyer before the purchase goes through. If the bank that issues your card does not support Verified by VISA / Secure Code by MasterCard and 3D secure, then the transaction will be declined and another card needs to be used.