Asda customers who use the supermarket's loyalty app have all been given a five day warning.
Since Asda launched its Rewards app last year, more than three million people have signed up for it. The supermarket giant has now added a new feature to allow shoppers more time to spend their Cashpots in the app.
The supermarket is extending the period customers have to spend a voucher after creating it in the app from one to three months.
