Inefficiency

I am continuously receiving sms's saying that I owe them money, of which I called them a couple of times requesting that my number be removed from their database as I am not the person they looking for. They have assured me more than once that it will be removed. Today I had enough and requested that I speak to a manager or the leader of that Justine agent to remove my details. The rep by the name of Glenda Tlhapi was adamant that I could not speak to a supervisor, manager or the reps team leader because I was not the account holder. She assured me that she would correct the error, but so did the three consultants before her as well. To make matters worse she further mentioned that she did not see notes on the account stipulating the above. This matter needs to be rectified speedily.