Please I mistakenly did a wrong data I want to turn it back to cash

It was supposed to be airtime but I mistakenly did Data and the phone is a small non whatsapp phone

Mistake recharge airtime of 48‚000 and u want to turn it's to cash

I wanted to recharge my modem of monthly plan of 20g of 5500 and I mistakenly sent 5000 from my bank how can I get my refund and recharge properly

I need mtn to help me reverse my data to my bank account