How do you use your card in store or restaurant

sandycash wrote:

Reason why I ask is they gave me a four digit number to use online then another four digit number to use on the card I don’t understand what are the 4 digit numbers for?

Perhaps How to find the card numbers associated with your Apple Card will provide an explanation.

According to How to make purchases with Apple Card:

"Pay with Apple Card anywhere Apple Pay is accepted, and use the titanium Apple Card or card number anywhere Mastercard is accepted."