Sending a payment by mail what address can I send it too.

I want to transfer my balance to another card. I want to pay my balance with a check. Where can I send the check?

If you mean your Apple Card bill, you don't mail payments. You pay using the Apple Card in your Apple Wallet, by setting up payment through your bank checking account.

See this --> How to make Apple Card payments - Apple Support

We are all users on this user to user only forum. We don't have anything to do with your Apple Card Payment. You DON'T mail checks to Goldman Sachs. If you need to make some alternative arrangement to pay your Apple Card, you need to contact Goldman Sachs directly for help.