Fone contract with Telkom

I'm not happy with there services with new contract. They didn't tell me the new contract got a limit on it. When I confronted them about it they tell me it only came up after we where done with al the work on the computer. So they stopped my fone and my wifi and it's 2 different contracts. The wifi I got especially for my daughter to assist her with her school work. With my old contract if my data or airtime was finished I go to bank and load again. Now with this fones contract you can't load any airtime or data they just block it. I told them if they told me this when I took out the new contract I whold have told them I'm not interested. Now they stop every thing and that's not right. Can you please assist me and advise me where to go and what to do. I was forced to take my old fone get a pay as you go sim just to get back on the network to communicate with my work and other important people.