You will see the the procedure you need as a Capital One credit card Person to access their account through internet, in which they can make online payments, reach customer services number for further assistance.
Method of Access Account Online
Helpline Number-Make Payment by Phone
• Capital One consumer credit cards phone number: 1-800-227-4825.
• Capital One small business credit cards phone number: 1-800-867-0904.
Credit Card Physically Payment Address
P.O. Box 71083
Charlotte, NC 28272-1083