Invalid charge method help !

Hello,

I recently had my seller account set up , everything was going good , I did the rookie mistake in the beginning by using a prepaid credit card, saturday I had the prompt message of “invalid charge method” , I changed the prepaid card to a visa credit card, I also noticed amazon charged 0.00 USD and 0.00 CAD, does that mean the verification process is ongoing? I contacted amazon support and they were of no help, they still told me its prepaid because thats what shows on their end. The billing address I input is identical to the credit card statements but not the bank statements which I filed for amazon.

Any help will be much appreciated.