Bad customer care

I reported ***** and was told to wait for 21 days for investigation while I was on that wait 3 more attempts to take up new contracts and upgrade were successful until I picked up now I have to call MTN everyday just to confirm if No new application has been done when I reported this to ***** department I had to log a new case requiring affidavit which I have previously submitted on my first incident asked that my profile be flagged in the mean time, they couldn’t flag my profile until the 21 days investigation has been completed, the service agents I keep receiving are not acting in the best interest of I as the customer/consumer