Hi M4R1AH, i too am starting training with Virgin on the 18th
Quite scarred! Not too sure what to expect myself, from what i understand it's smart business attire for the first week and then casual but smart clothes after that. Im staying in a crew share place for the training period in Maidenbower (10 mins from The Base) which i booked through Shortstay.co.uk, seems really nice but quite pricey. Hope this helps.
What date did u have ur interview on?