Supermarket is giving shoppers £5 off when you buy petrol - here's how it works

Asda is offering customers £5 off their next shop when they fill up their car at one of its forecourts.

Shoppers will need to keep their petrol or diesel receipt and show it to a cashier before paying when they next make a purchase in stores.

But there’s a catch - the £5 off can only be used when you spend £40 or more on your next Asda shop.