Inability to sort out a the internet service

I have a bad experience with Telkom regarding their Internet service. It is now a year or more that I have been logging calls regarding our internet which is so slow that we cannot use it. They do attend to the problem, but whatever they do to fix the problem only lasts a week or two then it is back to the same slow pace.<br> We have a 4meg line and uncapped data but we cannot even watch a video clip on Youtube.<br> I used to be a loyal customer of Telkom as I always received good service, but thing have definitely changed in the past year.