What is a Premium Bond? Southampton Premium Bonds winners in August 2026Every month, only two winners take home £1 million, but there are still plenty of other prizes available from the bonds. The prize draw is usually broken down into counties, such as Hampshire & the Isle of Wight, but Southampton has its own specific section. To see if you’ve ever won a Premium Bonds prize, just grab your holder’s details and head to the prize checker. You can also use your NS&I number, which you should see on any letters or emails about your bonds.