Still the same problem after 5 months!!!!!

I have been reporting my line speed is very slow for a few months now. Telkom keeps sms'ing me back saying the problem is fixed, if not reply back blah blah blah. And I DO REPLY BACK!! But you still don't fix my connection. I've been paying for a 4mbps line for 24 months now, and have only received full connectivity 16months at MOST!!!! This is absolute B.S!!! Telkom told me that it is definitely my router. I have replaced it 3 times (the routers work 100% at another persons' line) I now have reported the same f'ing problem again, and the reference number is : ***. I have yet to get any response ( this is a week ago) I reported it again via sms this time with a reference number 328CTK050915....this is 3 days ago..... Seriously telkom, you have been breaching contract for almost 40% of my hellish time with you, FIX YOUR F*CKING SH*T!!!!!! If this hello peter method of getting what I am paying for is not going to work I am definitly going the route of getting lawyers involved.<br> <br> Is it really that hard to fix my line??? Send a guy out, test the line, CHECK whether the downstream speed is 4mbps and then what do you know?? you have a client that gets what he is paying for....ffs!