MTN is *****ing my money!!!!!!

In April 2015 I went to have my one contract upgraded to have a split sim and 100 minutes to the handset and the data package of 1G to the Ipad. they incorrectly upgraded another nr of mine, then MTN went on strike. I was unable to get any support for a long period and have been to various branches to get assistance but to no avail. Due to my phone nr now being a Data contract the calls were very expensive and I could not use my phone to make calls, I eventually decided to upgrade my WIFI contract to a Sky Package and had to carry two handsets for a number of months to be able to perform in my job. Then in Dec in desperation I went to HQ for assistance. The lady who assisted me said they first have to remove the upgrade from my phone back to the original nr which I requested and re-instate my original contract. Then I need to come back in January to merge the Sky Package with my phone contract, I now have a pay as you go, not by choice and paying for the Sky contract. Having to load airtime everyday to use my phone. Not getting any assistance from MTN, I want to scream at the top of my voice with frustration.