I won €5k with theI Irish Mail on Sunday sudoku the christmas before last,.. and I didn't realise I had won the prize. They posted my cheque to me, with my correct address, and it got returned to them because the postman couldn't find the house I guess (it was a new estate at the time),.. they sent it out to me again,.. this time by registered post, and I got my cheque. I've won smaller prizes with them also in crosswords and sudoku and always got my prize in about a week.