Rewards UK - Burger King What are the benefits to joining BK Rewards? Guests will earn points for every £1 spent at participating Burger King U.K. restaurants, which they can redeem for certain BK food items. Guests can also upsize certain items and earn Points faster during limited time events. In addition, benefits such as earning bonus Points by completing challenges, will be launched throughout the year. For terms and conditions, please visit burgerking.co.uk/rewards-policy.