Dose any know why config 3 is no longer available on seatmaps on VA website.
Hi and welcome,
I believe VS have now added the economy section to all LHR 747's at the back of the upper deck (per config 4) so there is no longer a difference between 3 and 4 - hence the merge. It would have made more sense to remove 4 so there is 1-3.
Luke