R200 Prepaid Airtime Purchased and Not Received

On 30 October 2015 at 12:57, I purchased R100 airtime through internet banking. Did not receive sms notification, so I presumed I had logged out prior to confirming. I then logged on again at 17:01 andre- purchased R100 airtime. Still no notification. I then checked my bank statement to find that both transactions went through my bank account but I have noting to show for it. I phoned Cell C and was given an Incident Number *** / Case No.***. On Monday 02 November, as requested by Cell C, I sent a copy of my Bank Statement reflecting the deductions. In turn I received an email from them acknowledging receipt thereof and that I must wait 24-48 hours for a response. Nothing! I contacted them again and was told to wait another 24-48 hours. Still nothing! I contacted them again and got another email requesting a copy of my Bank Statement. Friday,11 November was the last time I contacted them to get an answer and was told to wait another 24-48 hours. This is now becoming a joke! They have ****** my money and their service is disgusting. How much longer must I wait to get what I paid for