Delay in cancellation of contract

I sent thru notice of my intention to cancel my contact to the cancellations dept on 24/11/2015 and have still not been contacted personally regarding my request. I received an email response 3 WEEKS LATER on 16/12/2015 with reference number ***5. I then walked into Adderley Str,CT Branch on 31/12/2015 and liaised with Muneeba.I emailed her the original cancellation form & she assured me she'd follow up & she'll get back to me-of course she DID NOT.I also walked into your Tokai Mall branch on *** and was told that i couldn't not be helped as the system was down! In addition, I have made several calls to your call centre and was also told on 1 call that the system was upgraded and no feedback can be given.Several call backs was PROMISED on these calls but I'M STILL WAITING!!!I have not dated any of my calls to the centre but i hope that you'll be able to track it since the agent said \I'll leave notes on the account". I've also sent emails but once again-NO RESPONSE!!! I feel that i'm being held 'HOSTAGE' by Telkom as I don't have the freedom to move.I will not recommend your services to anyone else nor make use of your cell services again!!"""