MTN - NEVER AGAIN!

I took out a 2 GB cupped contract for R99 pm on 14 11 2014 at MTN Hyde Park. Did not rec an invoice but R1022.79 was deducted from my acct end Dec. 2014. I complained at Hyde Park store but was told to contact MTN H/O in Roodeport where I met Ms Reabetswe Hlahatsi on 19 Jan 2014. She told me, that my contract was not cupped and informed me by email of the financial circumstances if I stay/or leave MTN. I rep**** by email that I would stay under the condition that my contract with MTN is corrected to what I took it originally out for, namely 2 GB cupped data for R99 pm! MTN continued to send to me incorrect statements to which I complained to Ms Hlahatsi and Mr Neo Makoti several times. No action was taken by MTN H/O. I then complained at Hyde Park store who recommended that I see the Morningside MTN branch for help. They told me my file is with Legal and I must go to MTN H/O which I did on Tue 23 July 2015. When I arrived there the striking MTN staff was a hazard to motorist. MTN is taking me financially for a ride, charging for data I have not used. As a pensioner I write emails use occasionally Skype. I URGENTLY want to resolve this problem with MTN