If your payment doesn’t go through, you may want to make sure that all of your credit card credentials are correct. (It’s possible you entered the wrong CVC number!) Also, one of the most common reasons a card gets declined is because it’s expired, so that could potentially be the culprit.
If none of these are causing the issue, try calling your credit card company directly. And if they don’t have an answer, shoot us an email at firstname.lastname@example.org and we’ll work on getting one for you