TESCO shoppers are reporting major issues with the supermarket's app and website.
Frustrated customers say they have lost their baskets of items on online orders or are unable to log in.
More than 1,000 people have reported issues on Down Detector, which tracks outages.
Some 64% of shoppers said they had problems with the app, while 36% were struggling with the website.
“When will your website & app be working again?? I need to finish my shopping by 13:35 or I lose my slot! I'm disabled and cannot go to the store myself!! What tf is going on??” one shopper wrote.
Another said: “Just spent 40 mins filling my basket for an online delivery only for the website AND app to fail. Nothing I try gets it working again.”
The Sun has contacted Tesco for comment.
