Bobbie Gordon was saved by her credit card company’s fraud team, who prevented the absurdly large bill from going through.

She said she was shocked when she realised Asda’s error and told The Telegraph: “I told my seven-year-old ‘you must really enjoy this banana, you must cherish every mouthful’.”

Ms Gordon has since received an apology from the supermarket chain, which admitted it had “slipped up”.

A spokesperson for Asda said: “Whilst our bananas are excellent, even we agree that they are not worth that much and clearly there has been a glitch in our system.

“We would like to thank Ms Gordon for keeping her eyes peeled and flagging this error to us and we are investigating to ensure it doesn’t happen again.”