If you have any further questions about unclaimed prizes or forgotten Bonds, you can call Premium Bonds National Savings and Investments free on 0500 007 007. Your call will be taken by one of NS&I’s award-winning UK customer service team. NS&I are available every day from 7am till midnight. Calls from mobiles may not be free. Calls may be recorded. Or write to NS&I at:

Premium Bonds
National Savings and Investments
Blackpool
FY3 9YP