Bad service

I did an upgrade with Cell C in April and I was sign up for an additional simcard without my approval. The sim card was cancelled June and already there were funds debited on my account for that simcard. I have been requesting that the funds that were debited for the simcard be moved to my actual number since they say my number was in errors till today the funds are not moved and my account has been handover and I have been billed for penalties but the fault was with Cell C.