Frustrated with the lack of service

I opened a contract in November at the Fourways Crossings store. The sales agent opened two contracts in error even though I signed for one. On 15 Nov a case was logged to cancel the contract without any penalties. I phoned numerous times to follow up and all they say is that they have send an follow up email. In the beginning of Dec I was told that I had to send an affidavit of the incident. When I followed up they advised that they have received my email and another case was open for *****. On the 31st I was told that there was no cases open. The agent then logged another case. At the beginning of this month I called again and yet I was told that I need to wait. 2 weeks ago I called and spoke to a manager, Tony Venter who assured me that she will get it sorted and will email me confirmation. She also said that I will receive a credit for the amount that I was charged for the second contract. Guess what nothing was done yet again. I phoned the call centre today and I was told that there is no other solution than to wait. They Sent me an sms and I am going to be charged again for a contract that I did not sign and did not receive a hand set for. Case numbers ***9 & ***5