Not keeping to appointments

Spoke to a consultant on the 16th to get my line installed on Saturday the 18th April, consultant was supposed to feedback with confirmation/alternate arrangements, no feedback was received. Was contacted by a consultant on Tuesday the 21st and made an appointment for Wednesday the 22nd April, I had taken a days leave for this and no one had shown up or contacted me. Now I'm on the phone for 30 minutes and counting, being referred to different departments, been on hold for the most part.<br> When will this line be installed? I cannot be wasting leave days and you guys not delivering.