Cheers guys (I think!). I took it with a pinch of salt to be honest, and am quite happy to wait. It will be interesting to see - dealer advised that they will notify me 4 weeks before delivery. Some folks on here seem to know their build week - how do you find that out?
I'll post when I do eventually get it 
There are many cancelled orders out there from when people got sick of been messed about. You have probably been given one of those.
Two ways of finding out your provisional build week are:
1) Ask the dealer to look on the DIALOG system and see whats is listed or to send you a screenshot of that info for confirmation they are telling you the truth.
2) Ask the dealer for your
commision number this is the number used to find your order on the DIALOG system. So what you can do is then phone VW customer care and give them your commision number and they will let you know the status of your order. Due to the amout of calls to VW customer service of people doing this some of the operators are a bit snooty because they think you should be asking your dealer for this information and not bothering them. But if you have an unhelpful dealer or one that lies then how else are you suppose to find the truth!