Every month my bill is killing coz of they billing

It was 2013 09 July when I went to telkom 320 westreet Durban. I got assist from the lady called Zandile. She did me telkom mix contract. Since I started to pay always my bill is killing me. And I used to request why this billi is so high? They told me this and this. I used to ask difference people but still not get solution. Last month billi I didn't pay because I still do follow up of my billi why every month I pay like triple. Today I come gateway where I was getting solution from nice guy who really knows his job very well. His name is Anesh. He told me my bill is so high because of they over charging me. From the time I take contract. Smart intern2.5 BG is 299 but they charge me 442.98. Image I started to pay 442.98 since 2013 unti 2015 instand of 299. I also blame billing account department why they didn't realize this account is something wrong with it? My question is how many people who getting robot by telkom. I need they head office to notified I need my money back and cancel all my contract from them. 143.98 over charge. Now is already R3023.58. People ve to be careful by telkom. I will make sure the world knows you and bring back my money. Hellopeter play your roll.