TESCO customers have just hours to update their Clubcard app before a major change kicks in.
After March 31, older versions of the app will stop working, meaning customers could lose access to their rewards.

The UK’s biggest supermarket has urged shoppers to install the latest version to keep earning and using their points.
In an email to customers, Tesco said: “To increase your data protection and online security, we’re updating our Tesco app to a newer version.
“After March 31, older versions of the app will no longer work.
“To keep shopping and enjoying all of your Clubcard benefits, make sure you have the latest version before March 31.”;
Tesco confirmed the update won’t affect its website, Tesco.com.
Shoppers can update the app via the Apple App Store or Google Play.
It’s the latest change Tesco has made to its app in recent weeks.
Earlier this month, the supermarket scrapped its popular Tesco Pay+ feature.
The move means customers can no longer pay for their shop and collect Clubcard points in one quick scan.
Tesco said it regularly reviews its payment options to improve its services.
Meanwhile, Tesco shoppers are just realising they can bag freebies and discounts on their receipts.
Britain’s biggest grocer often hands out money-off vouchers through its Clubcard scheme.
But some customers have also found surprise deals hidden on their receipts.
In the past, one shopper managed to get free Pampers nappies worth £10 just by checking hers.
She said: “It pays to always select receipt at Tesco â you never know what free offer could come your way.”;
If you spot a freebie, simply show your receipt to a store worker to claim it.
So, before you shop, make sure your app is up to date â and keep an eye on those receipts.
Elsewhere, the supermarket giant has recently started handing out out unsold food to cut waste and help those in need.
It began introducing the freebies across selected Express stores as part of a trial earlier this month.
Therefore, the free products will only be made available to shoppers who visit these branches after 9.30pm.
Meaning it is not currently at every Tesco store.
Staff will also get priority for the free products reduced earlier in the day.
However, any food leftover at this point will be free for shoppers to take home and enjoy.
A Tesco spokesperson said: “We are constantly looking for innovative new ways to reduce food waste.
“In all our stores we offer unsold surplus food to charities and community groups, donating millions of meals each month.
“This trial, in a small number of our Express stores, will allow customers to take any remaining yellow stickered items for free at the end of the day, after they have first been offered to charities and colleagues.”
How to save money at Tesco
EVERY little helps when it comes to saving money at Tesco.
Flying Eze's Head of Consumer Tara Evansexplains how you can save money at the UK's biggest supermarket.
Clubcard points
Tesco first launched its loyalty scheme back in 1995. You get one point for every £1 you spend in store. If you spend points in store then 100 points is worth £1. You can spend your points via its reward partners and get triple and even sometimes quadruple the value.
Extend Clubcard points
You can find lost Clubcard points and find the last two years of unused vouchers by logging into the Tesco Clubcard site.
Clubcard prices
If you do not have a Clubcard, then you will miss out on its cheaper Clubcard prices. However, don't forget to check prices before you shop because it might not be cheaper than elsewhere, especially on big value items like washing powder and loo roll.
Yellow stickers
Shops vary the times they reduce groceries with yellow stickers, but Tesco tends to be between 7pm and 9pm.
Save money if you shop online
If you get your Tesco food shop delivered then it might be worth buying a delivery saver pass to help cut the cost of delivery fees.
If you live near a Tesco then you can get click and collect slots of as little as 25p, so it might be cheaper than getting your food delivered.