GM credit cards are issued by Capital One, and you have multiple options to make your monthly GM Card payment:
- Online: Log in to the standard Capital One login page to access your GM BuyPower Card or Business BuyPower credit card and make your payment.
- By Mail: Send your payment to the following address: GM Card/Capital One, Attn: Payment Processing, PO Box 71083, Charlotte, NC 28272-1083.
- By Phone: The GM Card / Capital One customer service phone number for payments is 1-888-316-2390. (Business GM Card customers, call 1-800-446-5347.)
Read more here:: howyoupayit