A contract mistake, with zero customer service

About a year ago, (feb 2015) we got a new Lte15 gig Contract, that was my best option at the tme because telkom couldnt install a landline in my area, so we opted for the second best. <br> <br> I work as a freelance artist and as a result i use allot of data. <br> <br> later the year telkom announced bigger lte deals exceeding 50 gigs.<br> I was ecstatic, so we tried to upgrade the contract. but sadly there was a problem.<br> <br> the contract was signed with by us as a 24 month contract, but the lady that put all the info into the system made a mistake and put the contract as a 36 months contract. <br> this was at East Rand mall<br> <br> as a result not only are we stuck with the contract an extra year, but, we also cant upgrade it, <br> <br> So later i moved to Pretoria. i went to the telkom in menlyn multiple times, trying to sort out this issue, each time i get told that they will phone me within 72 hours and each time i had to wait weeks. <br> <br> they phoned me at times but still couldn't fix the problem. <br> I have to buy extra data every month, that costs me an additional 700 to 1000.<br> <br> I want to cancel the contract or upgrade it, but surely it cant take 9 months to just change one line on their system. <br> <br> fault nr :***