For anyone following this thread - just to say that my installation has been put back yet again... now due at the end of September...4 months after the order.
I really think VM WANT me to cancel the order to save them the hassle of having to do any work. Needless to say I m not even going to consider cancelling my order (you have 14 days to cancel once the service has been installed if it's no good).
unfortunately you will get little info - delays happen and its not always down to VM - lets be clear i am in no way defending their system - its not joined up in any way - info is not passed to whoever needs its so you the customer can be left in limbo - have you any info what the problem is - if its a blockage then a council permit is needed to dig and sort it - add 6 weeks minimum for that plus a bit more for the construction team to actually do the work once the permit is granted - thats assuming the work is simple and roads do not have to be closed - i.e digging the pavement up - but if the blockage is more complicated or in a road or more critically [say] across an entrance to a school or hospital then the time can escalate
unfortunately you will be hard pushed to get any info - the best you can hope for is the construction crew have marked the blockage with green paint on the pavement or road - but that does not always happen afaik
so patience is something you need to apply - if VM are still giving you an install date however far in the future then it should happen - if they wanted rid of you they would simply mark your address as unserviceable - thats unlikely to happen as the duct not only serves you but other customers and other potential customers so the will [in their own time] want the duct serviceable