My iphone 12 pro has no option to add credit card plz help me i want to add my credit card

Based on your country of residence and country you have selected under your Apple ID --> Payment methods that you can use with your Apple ID - Apple ...

Have you a Debit/Credit card that is issued to you that is valid internationally and is from the same Country / Region as your Apple ID.

Hi, sign out of icloud, restart your device and sign back in. Now try. Good luck!