Unable to find payment made.. AGAIN

If I could give zero stars, I would.

I made payment using the MTN app and MTN is unable to locate the payment. I shared proof of payment that they sent to me via the app (on email) confirming successful receipt of the payment as well as my bank statement reflecting the deduction, however, they are still unable to find the payment. I have double checked and it hasn't been returned to my account (my bank statement - which includes transactions for almost a week post the payment, also confirms this, which was shared with them).

Now, because they can't find the payment, my line has been suspended.

This is actually ridiculous. I used their approved MTN mobile app to make payment, so it's not even like the payment could have been made to someone else erroneously?

Please hire new developers that can fix the functionality on the app, or remove it completely. Surely there should be a paper (digital) trail of everything that happens on the app???

This is not the first time it has happened. The inefficiencies are shocking.