MTN does NOT Communicate!!

We were moved from Nashua Mobile to MTN after Nashua closed down. That is when all the problems started. I renewed my contract the end of Jan 2015. I cancelled a sms bundle that was being charged on my account - it is STILL running and I am still being charged for it. I had over R1000 airtime - it miraculously 'disappeared'! I am STILL waiting for that to be rectified - I still have had NO feedback from them either - this is since beginning of March!! <br> My youngest son - has the Anytime 200 contract - for the past few months he has received NO airtime, sms's or data as per the contract we signed originally with Nashua. I now receive an incorrect and HUGE account each month for his number with some description of 'PACKET SWITCHED DATA CALLS'!! No-one can tell me WHY or WHAT these Switched data calls are!!<br> I think I have given MTN enough time to actually rectify these mistakes and refund me ALL the money they have been charging us in ERROR!<br> I have left so many messages on their Facebook page and also sent them inbox messages as they have requested - but so far NO-ONE has had the decency to contact us at all!! <br> We have 4 contracts with MTN and it is a nightmare.<br>