Worst service provider

If there was a zero star rating,that's what l'd give Mtn right now.l am sick and tired of Mtn contract for not updating my bill for (BA***) even though the payment had been made. I have called the customer care on several occasions,written to support on several occasions but still my bill says l have an outstanding amount. Why does it have to take you so long to update the payments on your system? One of the consultants by the name of Asanda Nxumalo demanded that l emailed her at *** the March 2020 proof of payment.She said she would make sure that my bill is updated when l did.I sent her the proof 3 days ago and she never got back to me.My bill still remains in arrears. Do your customer care guys even know what they're doing? I mean after changing my banking details l notified the customer service department so that the debit orders do not bounce on due date but that's exactly what happened in November,December and January and when l tried to pay via EFT the payment wouldn't go through.I called the customer service on several occasions regarding that also but obviously that didn't help because my payments only went through later than the normal day which is the 15th. I hope l wont have to do the same for February and March. I can't wait for March so that l can cut my ties with you. I don't even want to mention how you guys are chowing my data like l don't know what..... All my apps are restricted and I'm not always on internet,l mean l occasionally use Facebook and WhatsApp but recently my data gets finished like.... Is this the thank you l get from you after paying above R1800 for two contracts and buying data and air time for more than what God knows how much on monthly basis?