0.2 Speeds on ADSL line

Been paying Telkom for a 2mb Line and my speed has only every reached 1.25mb 3 times since i got my line which is almost a year ago, everytime I call they recreate my port and it doesnt seem to work, at night when we need the internet the most to do our work, we experience 0.2 speeds, How is it that the number one company that only offers ADSL is the number one company that cannot provide a service, and if you complain they tell you its a ''best effort service'' what is so ''best effort'' about 0.2 speeds on a 2mb line, ontop of that if i want to upgrade my line, that cannot be done, I live in kenwyn, and they cant even provide a proper service, how must the people on the farms feel, and then they charge the same amount for the service that they cannot offer, the least they can do is offer us a lower rate based on our distance or whatever their excuse is.