How to cash in premium bonds?

National savings and investments allow you to invest a minimum of £100 in Premium Bonds and a maximum of £50,000 (this increased from £40,000 in 2015). It's worth bearing in mind that the odds of a £1 bond winning any amount in any month is one-in-30,000. 

NSI prize checker website can be checked to see if you can win the prizes. These bonds do not expire, and one can check if they have won the prizes anytime later by using the online options. 

The national savings offer the “Claim your prize” to communicate with the winners on Facebook or Twitter. The winner will be able to confirm that they are accepting the prizes directly on the social networking site. 

One may have to give personal details to national savings and investments, where the organisers can contact and process the delivery of the prizes.

Those who have bought such investments will have to fill the online forms if they have not created an account with the website of National Savings & Investment ( NS&I ), and then can select the amount and the serial number to get the money. 

There is a form of section 6 where one can get the funds to a nominated account . One can even get the money through other means like by post through cheque.