TESCO has gone down today leaving shoppers frustrated at being unable to change delivery slots.
Customers say they can’t currently book a food delivery on the app or website.
Other shoppers are also unable to amend existing orders with hundreds reporting issues over the past hour.
Tesco confirmed it is trying to fix the problem, saying: “We’re experiencing an issue with our website and app and are working hard to get things back up and running.
“We apologise for any inconvenience.”
The supermarket is also encouraging users to try logging in on a private browser to see if it fixes the problem for them.
Dozens of shoppers have now complained about the issue on social media.
One said: “I have a click & collect order that I need to amend before the cut off in 2hrs!”
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Another wrote: “@Tesco will you extend cut off times? I need to finish my order by 12.15 for collection later today?”
While one said: “Hello, do you know if this will be resolved today? We are concerned as we have an order coming tomorrow and need to edit it quite a lot before it comes tomorrow.”
The Down Detector site also highlighted the issue, saying that user reports are “indicating problems at Tesco”.
According to the site, 76 per cent of the problems are being encountered when using the website.
A further 21 per cent are finding themselves stuck when trying to log in via the app.