Cellphone

When I spoke to salesman from cell c I asked for top up please I will purchase my own data and airtime apparently now after receiving a R785.00 bill for last month and this month bill already standing on R907.00 which I always avoid never had a cellphone bill so high and I mean never ever, so what I'm trying to say is that whatever I told the salesman on that day does not matter he still went along and gave me an open line nevermind what I the customer says what cell c decides for you you will get. And that is how they trick you. I am very disgusted and livid I'm trying to resolve this problem now for the past two weeks everyday someone will cone back to me give me a reference number no no one gets back to you you have to call them and remind them about your query. I can go on and on and on I am so tired already you just get nowhere.