I need to fix a payment method. None of it are taking I don’t know what’s the reason

Hey there, and welcome to Apple Support Communities Harsshaaa,

From our understanding, your are not able change your payment types. We can certainly understand your concern and see you came to us from the article Change, add, or remove Apple ID payment methods.

We would like to ask you a couple of questions in order to get a better understanding. First, are you using Family Sharing? If so, are you the family organizer? If you are not, then keep in mind that family members can use only the first payment method in the list which can cause this issue you are seeing. Also, do you have any activate subscriptions? When having an active paying subscription, you must have a form of payment to replace the old one. If you have no subscriptions and are the Family Organizer, then we recommend speaking to one of our Billing Experts, so they can verify your account and continue looking into this matter. Check out this link on how to contact us: Contact - How to Contact Us - Apple

Kindest regards!