Where do I send my Apple Card payment?

Goldman Sachs Bank may accept payments mailed to them. However, it’s considered a non-standard payment and Goldman Sachs reserves the right to reject such payments. Please contact Goldman Sachs Bank and ask for permission to send a mail-in payment. Here is a link to a support article that goes over the accepted payment methods,

How to make Apple Card payments - Apple Support

You may contact Goldman Sachs Apple Card support team via the following means,

CONTACTING — Goldman Sachs Bank 

• Using Messages; chat with an Apple Card specialist
• Call toll-free at 877-255-5923; or
• Write to: Goldman Sachs Bank, Lockbox 6112, P.O. Box 7247, Philadelphia, PA 19170-6112.

Nowhere. Payments are made either directly in the Wallet App on your iPhone, or at https://card.apple.com

See here: link-> How to make Apple Card payments - Apple Support

and here: link-> Pay your Apple Card balance online - Apple Support