Purchasing gems question

[CesarA]

Hi! I need help . I have some Play Store credit in my account, and I won't use it, so, I want to give gems to my brother, he also plays CoC, but the problem is that when I put my Google Account on his cellphone, and when I enter the game and go to the Gem Store, but when it loads, it doesn't let me choose to pay with my google account, anyone know to do? Something that crossed my mind is to delete his Google account from his cellphone and put my own, but I'm worry about doing something wrong and erase his village :c
Ps: Sorry if I made a mistake, I'm from Latin America

[Slaskio]

Not 100% sure, but on ios you cant buy in app purchases with a different account than the one you used to download/buy a game. Be sure his account is linked with google+ And you wont have to worry about deleting his village. Id either try bringing up his village on your phone, or deleting the app and install using your account for the marketplace then load up his village using google+ (same account? Not sure for android users).