MTN banking detail changes and app payments not working

Riddle me this. Early in 2024 I went to MTN to request a change in banking details. They updated on their system; no Debi check sent to me. Since then, and numerous emails to the customer care email, still no Debi check. I honestly can’t exaggerate how many times I’ve gone into the store or email to try and sort this out; eventually I gave up and as a result, I pay my account manually, every single month. I have gone in store (on multiple occasions) to ask for a resolution - they say they have logged a ticket. No communications, and still no Debi check. Every single month I pay my account, early, and still receive an sms saying that MTN have failed to debit my account and that my account is in arrears. I paid my latest account, early, on 25 June 2025. The app specifically says to me at that point - do you want to settle your account early - so I do. I receive a payment notification from MTN every single time I make a payment. Today, MTN accounts department phones me and says my account is in arrears and when am I going to make payment. What a joke!! MTN, I have been a paying customer for 15+ years, and I have literally begged YOU to pay my account on time. And this is the kind of service you give in return? Absolutely pathetic. I have literally just checked on the app and it asks me if I want to pay my July account EARLY.

Getting my banking details is a simple system fix on your end, I am sure; but I am at my wits’ end about how to contact you to get this resolved. You guys have caused me so much anxiety over such a ridiculous issue. I honestly don’t understand how you live with yourselves with such a ridiculous service system in place - I truly feel it’s ******* when you have a customer who has never defaulted, begging you to sort out the issue, and still you take their money every month and then go back and tell them they are in the wrong.