MTN Columbine Square

I have been trying to rectify my contract for the past 4 months now with no luck and have been trying to cancel it for the past month. I took out a data contract last year November at the MTN store in Columbine Square and i was initially incorrectly debited. My contract was R299 for 50Gigs of data and i was debited just over R2000. This was eventually corrected however since February i have only been recieving 42.5 Gigs of data. I have spoken to Sbonelo Mathe from the MTN Store on numerous occasions to have this rectified, i have visited the shop, sent multiple emails to him and customer care and i am still unsatisfied as i recieved 42.5 gigs on the 21st of March and again on the 21st of April. A query was logged by Sbonelo on the 21st of March to which i have never recieved any feedback despite my numerous emails requesting it, he promissed to call me but never did. I again followed up with him on the 19th of April and still no response. Everytime i call customer care i am advised to contact the store where i have taken out the contract which is a big problem for me as the store does not want to help me and this why i have come here. Here is a list of agents and reference numbers of those who did not assist me as each one advised this matter has been resolved: Angela Manne ref number ********** 5 Jabu Shabalala Charelle Brockman Thobekile Khuzwayo Sbonelo Mathe MTN Store Columbine Square.