when using the VIP Service? I want to buy tickets for Reading Festival 2011 on Thursday when they get pre-released for Vodafone VIP Customers. But my contract runs out next month and I plan on changing to O2.

Come August, when I go to enter Reading Festival, will I have to show evidence of being a customer? Or are all the tickets universal and I only have to be a customer when I buy them?

Would be great if there is someone who knows!