NO SERVICE MTN

As a client of MTN for several years I am no longer satisfied with the way I am treated. August 2018 I visited my nearest branch in Langebaan, Western Cape to cancel my contract for a second sim card which was given to me for free as a special offer when I went in for a upgrade. The staff member even ask me if I possess an 2nd cell in which I can insert the free sim card. According to the staff member she was behindhand with her Admin but she will forward the contract to me which never happened. Only to discover that I was paying R160.00 pm for the wonderful special. I was told that the contract can't be cancelled as it is a 3 year contract but that she will refer the case to Head office. As I could not get any answers from the staff member I forward my complaint to MTN customer care on 12 October 2018. Up till now I only have received case reference numbers and promises that the case has been forwarded for who knows who's attention.