CellC violating consumer rights. POOR Service!!!

After suffering for very long with poor signal and service due to having a contract with CellC and a prepaid number,the contract expired on the 22nd of October.I subsequently requested that I get a refund for the remaining airtime that I have(R450) on the prepaid number as I will not be using their services any longer and I did not sign anything that binds me to them with the prepaid sim.They say no, there is a policy(no proof of my agreement) and in a week they have not been able to show me this. I lodged complaints over the period but to no avail.They are dragging their feet now and bullying the consumer(me).I am very unhappy and my request was not unreasonable at all.That money is mine,if I do no wish to use their services I must get a refund.Prepaid=you buy credit,they consume credit in exchange for services.Contract/postpaid=you use services and they bill you at the end of the time period AND you agree to this agreement.Prepaid is not the same.I simply wanted to get my money back and move to a better network.They are forcing me to stay on their network. If I port my number, I forfeit my airtime. How fair is this?<br> <br> Extremely displeased.I supported them for over 2years!