TESCO has been hit with a massive IT breakdown - just hours after Sainsbury's was swamped with similar issues.
Tech problems forced the supermarket to cancel some home deliveries today.
Tesco did not specify how many customers or which regions are affected.
A spokesperson said: “We are working to fix a technical issue which has meant we have had to cancel some online orders that were due for delivery today.
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"We’re sorry for the inconvenience.”
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One disabled woman told The Sun that she found about her cancelled delivery in an email, but it didn't tell her why.
Zoe, from Gloucestershire, suffers from chronic fatigue and long Covid and so relies on home deliveries to feed her family.
She said: "I’m going to have to get someone to pop to local shops for essentials to last my family until Monday night or use up today’s energy to go out. I’m a disabled single parent carer.
"I rely on twice weekly supermarket deliveries due to my disabilities. I can’t manage big shops in supermarkets."
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The problems also sparked fury online as Tesco customers expecting home deliveries or click-and-collect had orders cancelled.
One woman says she was forced to make an emergency trip to the shops for nappies after her delivery was scrapped.
She fumed: "So annoyed my Tesco online order has been cancelled due to a technical issue…had to go out and buy stuff as desperately needed nappies and I’m not well.
"@Tesco what’s going on?"
Another said on X: "My daughter was due to pick up a click and collect order between 7-8 tonight but informed at 10am ish it was cancelled with no reason given?
"She is at work all day in the NHS and could do without this are you suffering the same issues as Sainsbury's?"
A third said she turned up to collect her order but was told it "wasn’t available".
She added: "I was told it would be cancelled, but you have marked it as collected."
SAINSBURY'S CHAOS
It comes just hours after Sainsbury's cancelled thousands of home deliveries and contactless payments collapsed following an overnight software update.
Argos and Habitat - which have concessions inside Sainsbury's supermarkets - were also impacted.
A Sainsbury's spokesperson said the supermarket's IT systems were back up and running by 4.30pm on Saturday.
Trolleys full of grocery's were dumped as panicked shoppers raced to take cash out, sparking massive queues at ATMs.
But with card-only self-service machines out of use,
Unable to use card-only self-checkouts, shoppers jostled in line at manned checkouts.
Sainsbury's customers were left furious by the chaos, as some blasted the lack of communication from the grocery giant.
Hilton Lord said the store in Warlingham, Surrey, descended into chaos as staff warned motorists of the IT failure as they arrived in the car park.
He told The Sun: "The end result was a massive tailback, as cars waited to get in and blocked the traffic going straight on.
"Inside, the cash-only service points were working, but not the card-only ones."
Another said on X: "No one told us till we got to tills. noone told us about it..only had fiver on me.. unfortunately mobile phones don't give out cash."
A third fumed : "Proactively contacting customers??
"Sat on hold for over an hour to find out what’s happening with my order, no hold music so not even sure sat in a queue."
A fourth posted: "You have made an enemy in me today."
On Friday, McDonald's had a system crash forcing it to close some of its restaurants.
Customers were reportedly turned away from stores and some reported issues with online ordering.
A Sainsbury's spokesperson said earlier: "We are currently experiencing a technical issue affecting some stores, our Groceries Online service and our ability to contact customers directly.
"Unfortunately, we will not be able to fulfil the vast majority of today's Groceries Online deliveries.
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"We are working hard to fix the issue and apologise to our customers for the inconvenience.
"We will contact customers proactively to rebook orders as soon as we can."