Unfortunately not the National Lottery but I have won first place in the lottery on Global cash clicks. To enter I purchased some tickets with the points I had earned on the site. They have a draw each month with 5 cash prizes, which are added to your account balance. I was saving up my points to exchange them for some referrals but had a reckless moment and changed my mind! I am very glad that I did. The top prize, by the way, was $5. Not a fortune, but still a great surprise!