Premium Bonds holders may want to check over the rules around the savings scheme , as significant changes are on the horizon. A financial expert has shed light on how the prize draw operates ahead of key rule changes to the NS&I programme. NS&I recently told customers that both the prize fund rate and winning odds for Premium Bonds will decrease from the April draw onwards. The prize rate is set to drop from its current 3.6 percent to 3.3 percent, whilst the chances of winning for each £1 Bond