Poor service on fault

I have been having problems with my internet line since the 1st of February. I was have intermittent internet access and I would call all the time to try and get it sorted. on the 3rd, they finally told me its a technical problem with the line and created a fault. on the 6th they told me a technician has been assigned to the case but still no one called or came. its almost 2 weeks now, with no internet and no one is attending to this. I called and they told me there is nothing that can be done, I just have to wait till somebody calls or comes. to me this is unacceptable, you cant tell a client they have no way of following up and no idea when this will be resolved.