4 Month incompetency of upgrading a contract

In November 2015 i went to a branch in a mall to simply upgrade or migrate my contract from a 10Gb to a 50Gb contract, <br> As easy this my sound, is this the most difficult request i have ever endured, There is simply no person that can assist me on the spot (due to lack of knowledge) and always needs to phone someone somewhere who cant help them/me either.<br> <br> I then after a few weeks and different branches and the call center, went to Head office in PTA and tried my \luck\" there, No luck.<br> After then seeing a post on Facebook (End of January 2016) by Telkom advertising their new Bolt Speed package, i commented on the post for help, at last i got some feedback, then after explaining my situation and stating that i have struggled for 3 months i was assured that someone will contact me shortly and that they \"sincerely apologise\", SO AFTER 11 APOLOGIES OVER THE LAST MONTH, i'm yet to get a simple phone call from anyone. <br> <br> the best part is that i don't want to go away from Telkom, i would just like them to upgrade/migrate me, or simply cancel my contract (with no cancellation fee) and open the new one. <br> Telkom has the worst service, but they do have good products. "