We're sorry to hear of the difficulty you are experiencing.
We would suggest trying a different card or contacting your card issuer to find out why the transaction is being declined. Please make sure your billing address matches the address with your card issuer.
Also, we only accept credit and debit cards. Alternatively, we suggest using a prepaid Visa, MasterCard, or American Express Gift card and signing up with that.
Please let us know if you have any other questions. We're always here to help!