unable to remove payment

Hey there Khurl,

Thanks for reaching out to the Apple Support Communities.

To get started, have you tried adding the new payment method before removing your previous payment one? If so, and if you've worked through the steps listed in the "Related Article" If you need to change or update your Apple ID payment method, we'd also recommend going through the additional steps in this next link that can help with troubleshooting the issue further: Remove a payment method from your Apple ID - Apple Support

If you can't remove a payment method

If you have subscriptions like iCloud+, have an unpaid balance, or you use purchase sharing, you must keep at least one payment method on file.

* Do you have a subscription? You can cancel iCloud+ and cancel other subscriptions from Apple. When your subscription period is over, remove your payment method.

* If you're in a Family Sharing group and you use purchase sharing, the family organizer must have a payment method on file. If you're the family organizer, turn off purchase sharing, then remove the payment method.

* If you have an unpaid balance, you might not be able to remove a payment method. Instead, change your payment method.

* If you still can't remove a payment method, contact Apple Support.

If still unable to remove or add a new payment method after going through the steps listed in the resources above, the next best option would be to reach out to Apple Support directly from this next link here: Contact - Official Apple Support

We hope that's able to help.

Have a great day!