MTN incorrect billing leads to homelessness...

Thank you MTN, such great service! After you guys incorrectly billed me, refused to reverse the debit order, I had to reverse it via my bank. Then I was threatened with being reported to the credit bureau and my service would be stopped within one day. I contacted your customer care via email for record purposes, this matter was escalated to your billing department from whom I still haven't heard a word. There's clearly movement on your side in figuring out what's wrong as I'm receiving smses for new orders being placed and I got my monthly airtime top-up today, yet nobody bothered to put a hold on my service being stopped. Now I'm stuck outside my complex, unable to open the gate which only recognises stored phone numbers, meaning your incompetence, interdepartmental miscommunication and defective billing system now leaves me homeless. You guys are great!