still givi g problems with slow speeds

So since October last year i have had a problem each month with my adsl line and with telkom, they come sort it out but the problem is still continuing. They have contacted me and said it has been fixed and there is no problem in my area or with my line. The problem is by the main telkom lines in JHB or Pretoria, they said technicians are on it but you can't tell me that it takes 2 months now to fix it, all ive asked them is to move me to a new dslam port But nothing, i have asked them to check my dsl modulator but it seems they do not know what im talkinng about. if someone by telkom knew what they were doing I wouldnt have to try contact them by phone or spam them on twitter. If I could get any help from a telkom person that knows about dsl modulation and dslam ports and moving me to a new port in my exchange please, I work from home. I use internet all day and this is not helping me.