Delayed relocation of ADSL line

To whom it may concern,

The relocation of my ADSL line was scheduled for the 4th of September but a technician never showed. I had to take my last day of leave to be home to receive them. After phoning to confirm if they would still be attending to my installation as per the scheduled date, the call centre advised me that a technician would be in contact... I am yet to receive a call. My application for the relocation was submitted on the 4th of August and the August invoice has been paid apart from the fact that I haven't had the option of using the service. Why do I have to wait this long to use a service I am paying for?