National Savings & Investments have urged to Premium Bond holders to check their numbers again as more than 898,000 winners have yet not claimed prizes worth £44 million.

There are two largest unclaimed prizes and both worth £100,000. The prizes are decided in National Savings & Investment's monthly prize draw. The only information about those two winners NS&I has is that both are female, and one lived in London and another in Manchester.

In Gloucestershire, hundreds of thousands of pounds have yet to be claimed. Moreover, across the county, there are over 7,400 uncollected prizes worth above £350,000.

The state owned investments organization NS&I revealed the figures as part of the nationwide search to help track down nearly a million investors.

A spokesman for NS&I said, "It is important therefore, to keep NS&I up to date if anything changes. Over a third of the UK population has invested over £45 billion in premium bonds, and every eligible bond is entered into the monthly prize draw".

The spokesman added that premium bonds holder can reduce the chances of their prized becoming unclaimed. They only need to manage their premium bonds online or they can opt for prizes directly into their bank accounts by BACS, if they have received the notification of the win by email.