MTN - STOP CALLING ME

Firstly, I cancelled my contract last year because I had to request repeatedly (more than 10 times) to stop getting calls from MTN for upgrades. Secondly, MTN made a mess of the cancellation. I asked to have BOTH my lines cancelled, only one was cancelled. This resulted in ongoing billing for a service I do not make use of. I have no finally managed to get them to cancel the second line as well (we will see if this has been successful, I am awaiting my final debit order). And now AGAIN I get calls to upgrade the line that has been marked for cancellation. MTN - your internal communication is not good. Whomever is managing the data that makes those little notes of "do not call this person again" is not doing their job either. If you need a software engineer who can actually build a working system for you, please contact me. The person I spoke to on the phone now has assured me I will get no further calls but I have zero faith in that being remotely true. I will actively discourage people from using MTN from now on because the way I'm getting phone calls now is harassment. Pick up your socks.