Poor Experience - No Callback

I called into MTN customer care on Saturday, 13 February 2016, trying to complete a sim swap. I got through to a customer service representative who assisted me as far as he could. The sim swap could not be completed as my number is on a watch list or under investigation, this was understandable as I can relate to the processes in the cellular environment since I have approximately 10 years experience in the industry (retail and contact centre)<br> <br> My issue is not receiving the callback promised as it now has been 2 weeks since the initial contact. I must however commend Garth Nagel (supervisor/team leader) for offering wonderful assistance when I called in yesterday 23-02-2016 requesting for my number to made available/released for a number port.