6 months of an overcharged Telkom Cellphone Bill

Hi there This is still not fixed. Store sends me to billing. billing sends me to store ; neither solved this problem. I have 2 or 3 people want to move to telkom mobile and another one going to upgrade! They wont be getting a good review from me. I took out a Samsung A5 in October last year, for the advertised price of R280 per month for a Smart Plan 100 and I am being charged R50 too much. Plus I was charged on my first bill (Oct 2015) for connection fee which I was not supposed too. And all petrol, time and money wasted trying to fix this. Case number is - cv case ***1