How do I obtain a new Apple Card number?

There are three sets of numbers associated with your Apple Card account. You can change the virtual number via the Apple Card in you Wallet app on your iPhone.

The other numbers are changed by issuing a new card.

https://www.businessinsider.com/apple-card-titanium-different-number-apple-pay-2019-8

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.