Prototype: V1
https://xd.adobe.com/view/bdb44437-1a07-4e20-9033-97a0722e46a6-e8e7/screen/66c03aaa-cd0d-4a6e-89fd-9a1fb8013d90
Airtime Topup is simple way to send credit to your family or friends' Mobiles so they can call, send messages, or surf the Internet depending on their phone company's options.