If you have a Royalties account with RBS (Royalties Graduate Account, Royalties Gold Account, Royalties Account or Royalties Student Account)phone the Royalties number on 0870 562 5555
Select your account when you phone up.
Then select the options until you get to the 'Concert bookings service'
When you book tickets through them you save 25% on the ticket value. They say your only allowed 2 at a time but I've had more than that. They also might ask if your the attendee so if your buying for someone else just say they are for you.
You will need to quote your account number and sort code as this makes up your account reference.
I have saved hundreds and hundreds of pounds through this service.
You can also get discounts on travel insurance, books, dvds and a few other things.