In the Saturday and Sunday Mails, there is normally a little card with 12 numbers on. (apparently in Scotland, these numbers are printed on the back page of the newspapers). You register with the Mail and each weekend you enter your numbers - they can only be used once - and on Saturday you acquire 100 points, on Sunday 150. When you have built up to 1500 points, you can claim various gift vouchers e.g. £5 to spend in various supermarkets, stores, DVDs and so on or you can bank your points and keep saving. Obviously if you don't normally buy the Mail, it's not worth spending 90p and £1.50 just to save up for £5. This is where it becomes irritating when people who don't buy the papers, come on here to cadge numbers for free so they can claim the rewards. Sometimes it happens that the card is missing and you can phone up for a set of numbers or go online to claim but only two claims are allowable in 8 weeks. And that's about it.