Are you one of this month’s lucky Premium Bonds winners? You could have won anything from £25 to the £1 million jackpot! NS&I’s official Premium Bonds prize checker tells you instantly. If you have NS&I Premium Bonds then use our FREE app to see whether you’ve won a prize in this month’s draw, or in the last six months. You can also check if you have any unclaimed prizes waiting for you. Just type in your holder’s number and see if you’ve won.