ADSL line not fixed

Called logged for ADSL line 12 days ago. Numerous calls made to the call center and call center keeps stating it has been esculated and I need to wait 48h. After 48h I phone again and am told to wait 48h. It has been 624h since I first logged the call. I have spoken to 2 managers who promised to phone me back and never did. <br> <br> No one ever phones me back and no one appears to be attending to this fault. I have now been on hold with the call center since 8.30am this morning - 3h later!