Direct purchase through phone credit is not available in all countries. To find out if your country is one of them, please contact Google or Apple to help you.
Note that the game's purchase process became easier on Apple devices through the (ISP) for Commanders in the following countries: Bahrain, Oman, Qatar, Saudi Arabia, United Arab Emirates.
So if you are in one of the previous countries, make sure that the operating system on your Apple device is updated so you can set up the payment method through the following link:
If this method is not available, you can take advantage of other in-game and efficient purchase methods available on (Apple and Android) devices, like:
- Credit Cards (Visa, Master Card ... etc.).
- Prepaid cards for Apple (iTunes) and Google, through which you charge your account in iTunes or Google, and then in-game purchases.