Incorrect info given at sales

I have been with telkom for some time now. Besides for internet speed dropping all the time. My recent experience is. Im on the Unlimited Home 10mb. So I get an email stating that with that package I get the Lit media box free... so I call the call centre.. they check my number/account. Yes I qualify for it. So I go collect it at the store. Noone tells me there is a charge. So I have a Aztech router which I got from telkom because the Dlink 1 was "faulty" after telkoms recent software update the Aztech is now not compatiable. So I call in to see if its still under warranty. Ita not. But this very helpful sales agent tells me she can upgrade me to the 24month contract which I thwn get a free router. Happy days. Bit what she doesnt tell me is that they are going to charge me like more than double on my next billing period. So from R700 I got a bill of R1907 an a few cents, aparently they charge u a month upfront. All she said was you will be charged pro rata. Which I was fine about. When I signed up with them i had paid a month in advance so why am i paying again. Then to top it off they want to charge me for the Lit media box. No-one stated anything clear to mw abput hodden charges otherwise i wouldnt of went ahead with it all. My reference is ********** 9. I would like this sorted as I am not paying R2000!!!!!!!