Asda is shaking up its loyalty app - but the change is good news for shoppers

Asda is giving shoppers more time to spend vouchers through its Rewards app.

The big four supermarket is extending the period that customers have to spend a voucher after creating it in the app from one to three months.

The new change will allow shoppers more time to build up their Cashpots to spend for a special occasion.

All three million customers who use the supermarket's reward programme will be able to benefit from the extension.

Asda has also issued a reminder to customers that any unused cash in their Cashpots that has not yet been converted into vouchers will expire six months after the cash was earned.

Around £20million worth of Asda Rewards vouchers were used in December last year (Bloomberg via Getty Images)

This means that anyone who began using Asda Rewards last July needs to convert the money they earned in that month to vouchers before the end of January or they will lose them.

Asda has said that customers will receive notifications in the app to remind them of the amount which is due to expire each month.

The Asda Rewards is an app-based loyalty scheme and prides itself on "pounds, not points" and it's vouchers can be created with as little as £1, and with the maximum voucher amount at £100.

Customers will see their Cashpot build up in the Asda Rewards app as they shop, the app can then be scanned upon checking out and can be linked up to an ASDA.com account for those shopping online.

After this people can redeem their cash whenever they choose by creating a voucher in the app with the money they have saved.

If you have the rewards app, you can earn extra in your Cashpot by buying "Star Products" or by completing in-app missions that are themed by product types.

A lot of Rewards customers used their vouchers to help with the cost of Christmas as Asda says around £20million worth of Asda Rewards vouchers were spent in store during December.

Mark Baxter, senior director of loyalty at Asda said: “We know that many Asda Rewards customers like to save up their Cashpots to spend on special occasions.

“This change means they now have longer to use their rewards and importantly can build up even larger amounts to use whenever they choose.”