Payment via mobile not available

[theaquiao]

I am from the Philippines and I want to pay subscription using globe via mobile option but the method of payment cannot be found in the list. Instead gcash was on the list but i dont have any idea how gcash works. And I was told that using payment via mobile is much easier. 

[theaquiao]

the one on the left is my friend's and the one on the right is mine

[dwynethd]

this is my problem too but idk how to do this help