Billing
How do I bill a payment purchase on a game to my phone bill
iPhone XR, iOS 13
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How do I bill a payment purchase on a game to my phone bill
iPhone XR, iOS 13
Did you change your payment info in that way?
Change, add, or remove Apple ID payment methods - Apple Support
But, first you'll have to check, if paying via the phone bill is supported for your country:
Payment methods that you can use with your Apple ID - Apple Support
if it's possible with your carrier and in your country may differ I would ask your carrier about their stance
Billing