iOS 18 - Can’t re-add card after deleting them from Wallrt

Hello. I had to re add my credit card/ debit cards to Wallet. For that I deleted them from the app as well as from the previous cards section. Now I can’t get the verification successful after entering the card details. The cards have already been in my wallet before. I tried deleting all my cards, deleting the app, restarting my phone but the issue persists. I’ve contacted my bank and they say there shouldn’t be any restriction. Can I get support please? The Apple Support app doesn’t really help much other than taking you to FaQs