Instructions:If you go to the link above you can repeat multiple times to get a different voucher apparently the prizes are
2000- £50 vouchers
500- 30% off vouchers valid for 10 years
1000- 30% off vouchers valid for 1 year
70,000- 50% off vouchers
105,000- 40% off vouchers
Even if you don't 'win' you still get a 30% off code
Hope it helps someone!