No mention of cancellation fee

Upgraded my line from 20gig to 50gig, which included a DSTV decoder on a 24mth contract. I understood that the contract would take effect once I receive the decoder and the connection (which was to be plugged into my router).<br> I was phoned on Friday 23 January 2015 to say they were on the way. They never turned up. On Saturday I completed a sms survey which I received to rate their technician, the one that never turned up. Every week for the following 4 weeks I either went to telkom offices or phoned them to find out where they were and was told \they would get to me". Noticed at the end of Feb that they were charging me for a 50gig line. Went to see them on 13 March at telkom and cancelled it .... as how could I be charged for something I had never received?<br> At no point in time was I told that there would be a cancellation fee.<br> Today 17th March"