I live in a country where there are 4 telecommunication operators. Unfortunately, but fortunately for a lot, we still buy airtime top-up popularly called recharge cards or scratch cards which reveals the number which we use to load the phone balance. I want to build a mobile top-up card that can be used on different operators network. Basically what would differentiate the networks would be the USSD number.
For example, if we have operator A and B. To load a $50 card for operator A, I would dial *123*PIN# and to load on operator B, I would dial *124*PIN#.
There are many third party companies who sell these top-ups virtually where you input your mobile number, specify the amount you want and pay with your debit card. I am hopeful we can integrate with them or if its possible, build my own platform too.
I hope I make sense. If you think you can do this, please do get in touch with me soonest.