Can’t add my card to Apple Pay wallet

Can’t add card to my Apple Pay wallet but ai used to be able to use it before ai removed it even I have a new bank card plus the bank & Apple has gone through everything with to try & resolve this still not working 3 months on only error message ai get is card not added contact your card issuer for further information I’ve tried everything even reset network settings & erased all content & settings I’m at a dead end any help to resolve this is massively appreciated thanks