Previously when we've flown with Virgin we'd been told that the seating 'request' was just that - a request - and that there was no guarantee that you'd actually get the seats you'd asked for.
I have also been behind people in the Virgin check-in queue who have stood their ground and got a change of seats to ones which had already been 'requested' by someone else just because they fancied sitting somewhere different! So it seemed that the request excercise was a bit of a lottery.
This time however, when I rang to request our seats for October, I specifically asked about the chances of getting the seats we'd asked for and was told that those seats are definitely ours unless there is an unforseen change of aircraft / cancellation of flight or something similarly drastic! We shall see............