Incorrect bill from telkom

I have been a telkom customer for over 12 years. I did experience occasional problems but nothing that wasn't sorted out eventually. My contract was overdue for an upgrade so around the end of October 2015 i upgraded my telkom mix account for a promotion that was running at the time. I received the fone and was happily on my way. My November bill showed a fone that was much more expensive then the one i received. I queried the account but i was told by telkom call centre that they can do nothing about it and that i should go to a direct store for assistance. The closest direct store to me then told me to go to the store that i renewed my contract at and they will assist me. I live in gauteng at the west rand and i was on holiday in Durban when i upgraded. So i went back to the telkom branch at the pivilion mall to sort the problem. They sent out an email and told me that it will now be sorted out. I still didn't notice change in my bill. After countless of calls to the call center 2 months ago i received a bill for thousands of rands. Telkom charged me for internet add on that i did not ask for. When i queried the account again i was told to go to a direct store. 6 monthsNo results