I understand you are having issues with your bill being paid after some changes to your currency or locale.
Generally speaking, this can be due to your bank rejecting the payment due to changes/amount. I would highly recommend calling your bank to check for an error on their side to make sure there is no restriction there, once confirmed you can either try again or perhaps contact our live support team.
Our support team can then verify the error on our end, and if the resulting issue was a security check failure due to say, a security code on your card is entered incorrectly too many times, we can then lift that, or indeed check for any other issues that might present on our end.