Risk free gamble ?
Every day your money is locked up in Premium Bonds, it is losing its value because it isn't earning any interest, and it is being eroded by the effects of inflation. Premium Bonds are sort-of OK if you have loads of money in other places, like deposit accounts. But if you only have £30,000, if plain stupid to put it all in Premium Bonds.
Why do people always not understand the effects of inflation ?
eg, you put £100 into Premium Bonds. After a year with inflation at 5%, that money is now worth only £95. At the end of year two, its worth £90.25. At the end of year 3, its worth £87.73, year four £81.45. By the end of year 5 its only worth £77. You have lost nearly a quarter of your original £100. The odds on winning any prize in that time is very low.
How does that make sense to anyone ?