Hello there, I dont (YET) work for Virgin but I know someone that does. I was therefore told that the salary is £10,500 during the probationary period and then goes up after that. You also get a substantial sector allowance (I wouldnt like to say the exact figure) which from what I have heard is more than most airlines. This bumps the annual salary up alot and makes Virgin one of the better paid companies to work for.....
Can I just add that I am going by what I have been told and do not yet work for them......but hope this information gives you a rough idea......
Maybe someone who does work for them can give you a more accurate figure.......