Poor service. No answer on 10213.

Before 6 January 2016 I was contacted by eager agents from a promotions company on behalf of Telkom promoting Telkom's wifi for home use. On 6 January I spent quite some time on the phone with an agent and agreed to a 24 month contract for 5gb anytime data and 5gb night surfer data, plus the wifi router at a cost of R199 per month. I supp**** all my details and was advised that the router and simcard will be delivered to me by courier within 10 working days. I have callled their 10213 number. Useless to say the least. I wasted a lot of time and money calling to try and find out about delivery. How do I cancel the agreeement because I cannot get hold of Telkom agents. I am considering making use of another service provider. If Telkom does not get back to me as in yesterday, they can forget about me and remove me from their contact list. I will also advise friends and family about their service and lack thereof.