They stole my money

I was on a 350 anytime contract and had built up R1990.00 airtime. I was changed to 200min contract and informed my accumulated cash value would expire in November. I tried to contact through the Times consumer lady with no joy. So I decided to try and spend it. I bought a long term 12 month data deal and gave away airtime to friends, barmen anyone. The following day after I bought the long-term deal I realised that I had not paid for the whole 12 months but had to pay monthly. I phoned the help desk and they referred me to the branch. They tried to cancel it and could not. I tried to cancel within 24 hours. Am i not covered by the CPA Mr Moyce. Maybe you will reply to me this way as you dont any other way