Premium bonds are issued by the National Savings and Investments (NS&I). According to the NS&I, it is one of the largest savings organisations in the United Kingdom with nearly 27 million customers. Premium bonds have a fixed rate. The interest is not paid into each account, but given out as cash "prizes" to bondholders whose numbers are randomly selected by an Electronic Random Number Equipment also known as ERNIE. If you think you might have lost your premium bonds, have bonds you never knew about, don't worry: there is no time limit for claims. The NS&I has a tracing service to track your lost premium bonds or those of people for whom you are legally empowered to act.
Visit mylostaccount.org.uk; click on start search and fill out the online forms. All the information you provide will be sent to the NS&I to help find your lost premium bonds. If you are not the premium bondholder but are representing someone else, you must be able to prove you have the legal right to represent the bondholder.
Download a request to trace dormant savings or investments form (see reference 2). Fill it in and send it to: Tracing Service, National Savings and Investments, Blackpool FY3 9YP. This is an alternative to the online tracing service provided by mylostaccount.org.uk.
Call the NS&I toll free number on 0500 007 007 (UK number) with questions or if you have lost track of your premium bonds.
Fill in a separate form if you want to trace premium bonds for more than one bondholder.