How to update Expiry Date and CVV in Apple Wallet on my MacBook

Hi there! Please try to remove and add the card again.

Instructions: Change or remove the payment cards that you use with Apple Pay – Apple Support (UK)

Please also make sure that your iCloud sync is turned on for Wallet.

Please make sure the card in Apple ID is updated too.

If you need to change or update your Apple ID payment method – Apple Support (UK)

I did this:

So it turns out the issue wasn't the Apple Wallet or cache; it was autofill. The details can be changed here:

Safari > Settings > Autofill > Credit card > Edit

Have you tried changing your card info in Apple ID? If you need to change or update your Apple ID payment method – Apple Support (UK)

When it auto populates, is it a purchase you’re trying to make using Safari?

Yes, Safari is auto populating. A simple deleting of the cache should clear up the issue.

Thank you shilps80! This fixed my problem!