Gave me a deal but it cannot be installes!!!!!!

Good day Telkom contacted me with this good deal they have with a 4mb line selling the best this person could I accepted the deal as it is pretty good and cheaper but why do you call for deals when the exchange is over populated and I cannot have a 4mb line even though it is in Whitfield which according to telkom is very far and that is the reason that I cannot get a 4mb no matter which way I go.<br> <br> Why was this not checked before I was given the sales call to sell me a product<br> <br> As I recall the technician that installed my 2mb line said to me that I could have a 4mb line it is not to far and it would run very well and that was just 2 years ago doesn't telkom upgrade exchanges what am I paying for then if in 2015 on the East Rand if the price of a 2mb line is almost R600.<br> <br> I want a better deal telkom and don't phone me if every time I pick up my phone the telkom person on the other side just drops the phone in my eears.