Poor Service

I am extremely disappointed and angry at the services provided by Telkom. I took the September Deal of R200 per month for 30 gigs of data day + night. This was 4 weeks ago. It hasnt worked since the past month except for the 1st October for 1 hour and that too, I was given just 20 gigs day and 25 gigs night? The call centre 180 is absolutely useless. No matter how many times a day I call that number, there is no answer and I did try for several weeks. I also called 10213 & 10210 on several occasions and they were also of no help to me. I emailed the customer care to cancel my contract and the mail has bounced back??? Please contact me. I want this contract cancelled and I am not paying for something I didnt use!!!