Rude and bad service

I logged a order for a new ADSL line at my new place, they started the order, came an put the line in and told me it is done. The line was still not working and the nr. they gave me was on some other lady's name told me it will only be done in 2-3 days time and it is a normal line not ADSL and it cant be changed until it as activated. After activation I called in again and changed it to ADSL. I was told to wait 24hours then it will work Friday when I got home I got the message it is done and working tried to connect but the line was dead. I went to the store on Saturday where is was told by 1 of the guys \ I dont know what I am talking about the line is working it is my ISP"we had a fight about it and he turned around and left so I had to call again logged the call myself and they told me 3 days which after it still was not done. I called in again and they had excuses and told me 24hours. I called them every day after and every time 24hours and nothing gets done. We are now a week later and now I was told I must wait another 3 days. No manager ever calls me back and the last excuse is that the Exchange is down. There is a few escalations made on this problem but nothing gets done."""