slow internet connection

i have been complaining to afrihost that my connection is very slow and every time they tel me it telkom fault i hav e been fighting with telkom and report the fault over and over and i have ask afrihost thet is my isp to look into the matter why my connection is so slow it feel that i am getting shape to 50% or 80% i don't know if they afrohost is telling lie to the ir client or are they trying to ***** from us the client for every time their is nothing wrong their system it is always telkom at fault