In case you see the message saying the payment was declined, there might be several reasons for that. Based on our experience, in most cases, there are either insufficient funds on the bank account, or your bank is blocking foreign transactions on your bank account.
In both cases, we recommend first to check with your bank - check whether you have sufficient funds on the account, or whether your bank is blocking payments abroad.
If none of above is the case, drop us a message, we'll have a look ;-)