What do I have to do to collect Avios at PizzaExpress?

Simply visit https://www.avios.com/en-GB/collect-avios/shopping/my-account/registered-cards/ to link a payment card, and use that card as payment method in-restaurant at a qualifying PizzaExpress restaurant to automatically collect Avios. It can take up to 7 days for the Avios to appear in your account.