MTN Battling to provide me Number for life

In July this year i asked MTN to cancel my contract and put my number on prepaid, i waited for a week for this to be done, eventually some got to it and deleted my number off the MTN network, after 5 days they recreated it and i ported out. Last week i ported back to MTN cause i wanna take a contract and keep my number. I was told my number is still active on epics (so my number was still sitting on MTN's system as a contract since July) It eventually got release yesterday after a couple of days of waiting for the call centre to get feedback. Then yesterday another error pops up when they try and capture my application - NOT PAIRED ON SINGLE VIEW\ I am really getting tired of this up and down and I'm exhausted and spending money calling the call centre. The call centre (Kelvin & Mzie) say they send screenshots to 809 for help. I am humbly requesting that a senior person call me (NOT TEAM LEADER) to resolve this cause it seems dealing with the agents is not yielding any results