Absolute Pathetic Service - Contract buy out

It has been 2 weeks now that I am trying to get a settlement amount from MTN to buy out my contract as MTN is totally ridiculous with their data charges. I have originally spoken to MTN on Saturday the 25th of July 2015 to get my settlement. I have been advised that cancellations department is closed and will get back to me on Monday. I heard nothing on Monday, so I called again. I have been told that the cancellations department is not taking any calls, they will escalate my query, and I will get an email or someone will call me back. Yet again I phoned on Tuesday to be told that it takes 24-48 hours for someone to get back to me but I can go to a branch and they will assist me. On Wednesday I went to the branch and they informed me that they cant help me and that I have to phone 808. The lady at the branch assisted me in contacting 808 and got a figure but I have not yet received a letter. I have follow up 2 times now trying to call 808. Yet again I phoned, 02/08/2015 and even spoke to a so called \supervisor"Sibusisu"