I can't imagine using a credit card for something like this, but if you do, isn't this exactly what the chargeback is for? They clearly don't recognise your credit card payment, so the chargeback can't reasonably get you in trouble either. If the notice the chargeback at all, at least they'll figure out that you did pay them after all.<p>I'd use the payment method you used before, because that always worked, and then chargeback the old payment that clearly didn't work. How are they going to side with Facebook when you've got all that documentation that they don't recognise that payment?