I can’t add my visa debit card to my Apple payment method

1.

Sign in to your Apple ID account page and edit / update your Apple ID details.

https://appleid.apple.com

• On the Sidebar click Payment methods -> then tap Payments Methods and tap Manage payment method.

2. 

Or -> Change, add or remove Apple ID payment methods

Change, add or remove Apple ID payment methods – Apple Support (UK)

• Add first the new card, then remove the old one.