To edit the payment method you use for your SCRUFF Pro subscription purchases, select the subscription service in which you initially subscribed to SCRUFF Pro:
Note: Some payment methods can't be used for Google Play subscriptions.
Your new payment method will be used for the next renewal of your SCRUFF Pro subscription.
Note: If "Update Payment" is not available, auto-renewal has already been disabled. Once your subscription expires, you can use a new payment method to resubscribe to SCRUFF Pro.