Instructions:I really hope this is a valid deal.
If you go to the website
and play the christmas game, you have a chance of winning a range of prizes. If you do not win a prize, you get a discount voucher of £5 off £50 - guaranteed.
You are asked if you want to refer 3 friends. If you refer 3 games, you get another free chance at winning - and the voucher is upgraded to a £10 off £100
It is a unique code per person but anyone can play the game for free so anyone can get a code.
The voucher has to be used within 7 days of receiving it.