Don't trust my laptop(ISP is fine) to put credit card # in form. Don't mind telling whomever on the phone, sure your processing is secure. Know this is oldeschool and time consuming for employees, but heck I'd even put a check for a year in the snailmail if I knew where to send it.
TIA
I don't think there is a phone number available but I do recall seeing a mailing address somewhere for people who wanted to mail checks. https://support.chess.com/customer/en/portal/articles/1444832-can-i-pay-for-my-membership-by-check-or-money-order-?b_id=12321
Can I pay for my membership by check or money order?
Yes! Just don't forget to include your username!
Send your payment (and username!) to:
Chess.com
PO Box 540
Lehi, UT 84043

Don't trust my laptop(ISP is fine) to put credit card # in form. Don't mind telling whomever on the phone, sure your processing is secure. Know this is oldeschool and time consuming for employees, but heck I'd even put a check for a year in the snailmail if I knew where to send it.
TIA