Please send me a direct message here on the forum or email me directly at email@example.com.
Cards and banks can fail to authorize for various reasons. The first thing to try is another payment method if you have one available. If not, I can look at the logs and give you the exact reason that your transaction didn’t complete. Sometimes you may need to perform an authorization step through your bank.
The checkout is powered by Stripe. We should be able to support anything that is supported in their system. If for some reason your country is not available in the checkout, contact me, and I’ll look into adding it.