This is developing at a high rate due to the element of convenience, safety, quick money transfer. All the four prominent telecom companies have dealers on Kampala outskirts ( Airtel money, MTN mobile Money, M-Pesa).
It’s mandatory for every dealer to always have a chart indicating transaction costs that differ based on the amount transacted. On the other hand the cost of Mobile transacting is quite higher compared to banking. You can directly pay your utility bills with your Mobile Money Account.