Tesco customers are taking advantage of a price glitch at the tills that sees discounts on £3 meal deals applies twice.
It means people have been picking up food for remarkable prices, both online and in store, with some getting a sandwich, shack and drink for just 4p.
One person posted a video of getting £19 worth of food for just 47p after putting through a series of meal deals at once.
One shopper tweeted: "Two meal deals for £1.89? I think I broke @Tesco."
Another added: "Get yersel doon tae Tesco just got a meal deal for £1.20"
A third wrote: "Got a meal deal out of Tesco £1.40...Mondays a good day."
Normally, when the tills at Tesco recognise three qualifying meal deal items, it adjusts the price down to £3.
The problem appears to be that the automatic discount is being applies twice.
That means the bigger the savings you were originally due, the bigger the error.
One person shared a picture of his receipt where a £2.96 original discount was applied twice - seeing his total bill coming to just 4p.
Reports have since come in saying some shops have closed their sandwich aisles to stop people from taking advantage.
A Tesco spokesman told Mirror Money: “ We’ve now resolved a technical issue which affected some of our meal deals. We hope that those customers who received a little extra discount enjoyed their lunch.”