The lucky man from Wales bought the winning bond in July 2015 and had £17,745 invested. He scooped the £1m prize with bond number 250SL107433.

He becomes the fourth £1m jackpot winner from the area.

September’s second millionaire is a woman from South Scotland. The winning Bond number 093XD777211 was bought in March 2003 and she holds £10,000 in Premium Bonds. This is the third Premium Bonds millionaire from the region.

There were 3.85 million prizes up for grabs in the September draw, worth £110m.

There were 94.4 billion eligible bonds for the draw. Since the first draw in June 1957, 495 million prizes have been drawn with a total value of £21bn.

Ian Ackerley, NS&I chief executive, said: “We’re absolutely delighted for our two winners in Wales and South Scotland who have won this life changing sum of money. The easiest way for customers to get any prizes they win is to have them paid directly into their bank account. Customers can also choose to have their prizes automatically reinvested into more Premium Bonds, giving them more chances of winning in future draws.

“Every £1 Bond number has an equal chance of winning, which is why the enduring magic of Premium Bonds and the chance to win a prize each month are still one of the most fun ways to get into that savings habit.”

Are you a September Premium Bonds winner?

Premium Bonds holders can check today if they’ve won an amount between £25 and £100,000 via the nsandi.com prize checker and prize checker app. You’ll need your Premium Bonds holder’s number to use the website and the NS&I number or holder’s number to check via the app.

If you’ve previously chosen to have prizes paid into your bank account, or have prizes reinvested (maximum £50,000), you will receive an email or text message to inform you if you’ve won. You can then visit the online prize checker at nsandi.com or view the NS&I prize checker app to see the value of your prize.

If you receive warrants (like a cheque), you’ll receive notification of any wins through the post.

NS&I Premium Bonds prize warrants are valid for three months, however the warrants may still be accepted at a later date by the bank – up to six months. However, if the bank won’t accept the warrant, NS&I can send a new warrant.