I could purchase icloud storage using gcash

Hi,

Are you referring to Apple Cash or Apple ID balance?

If you are referring to Apple Cash, you can use it as a valid payment method on your Apple ID, and to purchase iCloud+ Storage.

• Payment methods that you can use with your Apple ID

If you are referring to Apple ID balance, you can use it to pay for iCloud+ Storage renewals as long as you still have a primary payment method on your Apple ID to maintain the renewal. Apple ID balance will always be consumed first for all purchases before charging the primary payment on file.

• What you can buy with your Apple ID balance

Hope this helps.