Following their Reading ticket swap last week, The Crimea are dishing out yet more tickets for ultra cheap, and this time all the proceeds are going to War Child.

If you're willing to spend a measly £5 and 39p on a text message (the fiver going to charity), you could win a pair of tickets to the Carling Weekend in Reading - just by picking a number. The lowest number to be entered by one person only gets the tickets.

"Essentially, it's a reverse auction with a £5 donation to War Child," Crimea Owen told Aloud Festivals. "It's a great competition, throws in a clear conscience for free and sticks it to the dirty scalpers charging extortionate prices for tickets."

To enter, just text BID followed by your bid in pence to 88211 – e.g. “BID 39” if you want to bid 39 pence. If you're off to V Festival this weekend, you can enter at War Child's stall there, and what's more you'll then be entered into a special draw to watch The Crimea play the side of the stage!

All the information, text number etc is on The Big Swap's website: www.the-big-swap.com