Here is a summary of how to update your payment method to GCash via the App store:
Follow these steps to update your payment method to GCash via the App store:
STEP 1: Open your Settings
STEP 2:Tap your Apple ID
STEP 3: Tap Payment and Shipping
STEP 4: Tap Add Payment Method
STEP 5: Tap GCash then tap Log in to GCash
STEP 6: Enter your MPIN
STEP 7: Tap Authorize
STEP 8: Enter the 6-digit authentication code sent to your registered mobile number. Tap Next
STEP 9: Tap Authorize
Congratulations! You have successfully added GCash as a payment method for your App Store account. You will receive an SMS to confirm the linking of your account.