Pre-installation work not being done

Hi All,

I have been trying to get an update on when the pre-installation work to my home will be done but for the past 3 weeks each time I phone the helpline I'm told it will be done in "a couple of days"  but no one comes to do the work!  I managed to get a fixed date of the 11 Sept for the work, stayed in all day but no one came.  When I complained they could only apologies but still not explain what was the problem or know how to resolve it.   My date for the internal installation to get me connected was for the 18 Sept which has now been postponed to the 10 Oct but still no date for the external work apart from the repeated assurance of "within the next couple of days".  Does anyone have a way of contacting the engineers who actually do the pre-installation work i.e. installing the cable from the street to the external wall of my bungalow as the helpline is completely useless.

Thanks.