How do I change my apple payment plan to an Apple gift card?

What payment plan?

You can add a gift card to your account, and the balance will automatically be used to pay for anything you buy or any active subscriptions you have.

See here; link-> Redeem your Apple Gift Card - Apple Support

Asadmohamed wrote:

Hi may name is Asad I need remove my apple gift card please help me

Remove from where?

Once redeemed to an account, Gift card balance cannot be removed. Exceptions can be made if the balance has been completely unused, that is its entire original value is still available on the Apple ID. But you will need to talk to Apple Support directly for that. click here-> Get Support

Hi may name is Asad I need remove my apple gift card please help me