Edgars charging for no airtime vouchers

On the 27 and 28 September. I requested 3 R35 Cell C and 2 R30 telkom Mobile vouchers. I did not receive anything. On the 1st October I called the company. They said they will contact me with the voucher numbers. Ref number ***. I waited no response. I called again was told they tried to call me but I didn't answer. Once again they promised to call me. No call, so on the 21st I called to get the service cancelled and get a refund as I was being charged for the vouchers I did not receive. The service is now cancelled but no refund has been placed on my account. This is very bad service. Please sort out ASAP.