Financial regulators in Nigeria have fixed a flat rate fee for all transaction done with for mobile banking app–the issue that has brought issues between telecom companies and lenders 

 Nigerian Communications Commission (NCC) and Central Bank of Nigerian (CBN) have come to terms, setting 6.98 naira ($0.0183) for each  transaction dine via the medium 

FG of Nigeria has shown interest to boost the digital financial sector and help citizens to without bank accounts get one

Nigeria has  20 lenders and with MTN-NG a South Africa's originated telecom company, currently the biggest mobile phone network. 

A quick code, mostly called USSD transactions done with mobile phone is cost effective and is what financial regulators should look into as a lot of users are abandoning the service due to high transaction fees  

"The regulators in a statement released on Tuesday 16, March 2021   said;  payments to mobile operators for providing the USSD services should be billed to bank customers and  lenders would not add up additional charges"