Porker911:
1st of March order and you're expecting it st June? Both you and your dealer have been very optimistic. Regular (SE/Match) Golf orders might just be fulfilled in 12 weeks. GTI/GTD/R orders most definitely will not unless you've grabbed a cancelled order that has done a lot of the waiting already.
If you are stage 2 now, best you can hope for is 7 to 8 weeks from now. If your car went stage 3 tomorrow (BW confirmed), you'd be 4 weeks from getting built, add in 2 weeks stuck at Emden for a ship to the UK and a week to get to the dealership from there and then the dealer doing a prep/PDI and you're then ready to collect. Aug/Sept for a fresh order placed in March is more in touch with reality currently.
Impossible for a "right now" stage 2 order to be fulfilled in June.