Terrible service

I took out a new contract on 17june witch was my real upgrade date with benzile I asked twice to confirm it's my real upgrade date she said yes. And told me. I will be paying my R579 from the next month. Month end came they tried to deduct R908. Want in store ady was no help said it was up grade fee and lot of other this. Which was not said to me on the day. I MADE PEACE WITH IT. paid the amount. She said from next month I will pay my contact amount she thinks as she can't see that far ahead. Next month they tried to deduct R910 they was not that amount of money in my account when to the store again. Very nice guy helped me said yes first Mont I was still paying for my old contact that was not close to the R900. And this month they charge me 2 for my package and all the other fees that was not disclose to me upgrade and tax that is only add after words I migh add. So my R579 contact still needs tax added to it. So I excalated the matter. When in a few weeks later beacaus they cut my phone. Waited for about 45 min beacaus nobody seen to know what is going on on my account. So they try to tel me about all these amount that I need to pay. Why they charge these amount that nobody tell you about. I told then to escalate it again I am not paying for that amount as it was not disclosed. And I left the store. I KEEP ketting msg that I own then over R3000. I called again person from amounts said she she there is a dispute so he said Paid the agreement apon amount of R579 to reactivate the account until dispute is resolved. I have paid it not been activated. Called again this morning just to be told it won't be activated beacaus I still own then money. It been 3 months now. Nobody can give me an answer. I have been with them for 20 years but I think it's time for a change.