Contract receivables different than agreed

With reference to my previous complaint, and eventually receiving the phone after 3 weeks (also without Cell C informing me that I needed a copy of my ID to collect the package from RAM) , it just becomes worse. In terms of the contract offered, it was indicated to be 150 free minutes per month and confirmed on various e-mails, whilst it now appears that I am only receiving a R100 voucher per month to be used for airtime, smses or data. I also received an additional sim card and, on enquiry, was informed that this is for a 2 Gig R99 per month data contract, which was never remotely discussed or requested. I was told that this would be looked into, but since last Monday never received a call again. On Monday last week I was also promised a refund for more than R1400 within three days for the amounts over charged after a data contract was cancelled on 16 June. I still have not received a cent. From the above it would seem that I am going to be very busy on hellopeter for the period that I still have my Cell C contracts.