Martin Lewis and his team at moneysavingexpert.com (MSE) have issued a "use it or lose it" warning to holders of £14 million in Tesco Clubcard vouchers. The MSE team has advised that these vouchers are set to expire on Saturday, August 31.

They suggest now is the time to maximise the savings or alternatively, use a trick to extend their validity. MSE said: "If you're unsure when yours expire and you've still got them in paper format, check the date on the voucher itself. If you've lost your paper vouchers, or are unsure if you had any in the first place, you can check on the Tesco Clubcard site or app.

" To check vouchers online, visit the Tesco Clubcard website, select 'Clubcard account' and then 'Vouchers'. You'll need to be registered for a Tesco.com account and know your Clubcard number, which is printed on Clubcards and Clubcard key fobs.

You should then see a table listing your available vouchers and their expiry dates. To check vouchers on the Tesco app, download the app for free from the Apple App Store or Google Play Store. Once downloaded, go to 'Clubcard' and then to the 'Vouchers' section.

After locating your vouchers, you can spend them online at Tesco using the provided code or if you plan to spend them in store, you can print your vouchers or scan the barcode available in the app at the checkout. Alternatively, you can double the value of your vouchers by spending them at Tesco's Reward Partners, such as Cineworld, Disney+, and Prezzo. Millions of Tesco Clubcar.