Where can I not redeem Avios PizzaExpress vouchers?

They cannot be used for full or part payment towards PizzaExpress online orders, supermarket products, gift cards, e-gifts, merchandise, pizza making parties, PizzaExpress airport restaurants, PizzaExpress live music venues (Soho Jazz Club, Holborn, Covent Garden, Chelsea Pheasantry), Welcome Break Service Station locations, or in conjunction with other PizzaExpress offers.