********* subscruption deduction without consent

I am on pay as you go, strictly budget. Bought R50 phone times, received 150 megabytes data for 3days on 13 April at about 12H00. Made one call yesterday night for about 19 seconds, this evening when I check my balance there was about 40 megabytes data left and R4 odd cents of phone money. I phoned Cell C and the lady it was subscriptions from CellC which has been activated yesterday without my consent. I was truly upset about the matter, it is arrogant and really dishonest, operationaly trying to trick, pay as you go customers like this. Have you ever though why we chose the option pay as you go, it is to be hands on, on expenses, I was promised the lost of call minutes will be put back within 10 days, my additional question is why that long, when Cell C immediately took money from my cash account. It is dishonest and ********* and Cell C have totally lost my trust. It happened in the past and with my mother. Cell C you are loosing customers and I am one.