When will seats be released for New Year's trip?

We phoned Virgin Atlantic yesterday to pre-book seats for our trip to New York over the New Year (which has been booked through Virgin Holidays). They say that Virgin Holidays hasn't released our details yet, so we can't book our seats until they do. We tried to get through to Virgin Holidays but as usual, there's a massive queue and we gave up waiting. We booked the trip a month ago. Any ideas on when VH will release our details?
Thanks in advance
U2fan
p.s. Fantastic site!!!!!!!!!
Thanks in advance
U2fan
p.s. Fantastic site!!!!!!!!!