DISSATISFIED WITH MTN UPGRADES

I am a Mtn customer for many years now and never experience any problems, until now. I am due for an upgrade and has been trying to do so without success. I went to Cradlestone Mtn in Krugersdorp to upgrade only to hear that I am deceased. The lady forwarded an email to her supervisor and the same result. I went back and spoke to the Store Manager Tshepo and he confirmed I need to speak to their head office. We phoned the head office and there I was informed that I need to do an affidavit by the Police to state that I'm alive!!!!! Imagine how they will laughed at me. I refused. How can Mtn my still bill while I'm deceased. I mean should I have a Late Estate then. I went to KeyWest and tried there but with the same result. I'm deceased. Although my thumb fingerprints match instore and I have a valid ID and even the government site confirm I'm alive, MTN still maintain their result in showing me as DECEASED. Now I have to do an affidavit and then dispute MTN's outcome of me being DECEASED. To top this all. I got a call from MTN upgrades today to confirm I can upgrade..... when I told the person but according MTN I am deceased how is his database then not updated. Needless to say he did not know how to assist me further. So there I am deceased but MTN still recover the monthly billing from my very alive bank account. So how can this be fixed MTN?????????????