When student Sian Heather went to buy herself a bottle of rosé wine after finishing work on Monday she got something of a shock.
The 19-year-old was asked to provide proof of her age when buying the wine at the Bargain Booze store in Eastbourne, East Sussex, and, bizarrely, was then charged 1p for successfully managing to do so.
Heather said she didn't think anything of it at the time but is now wondering how many times she might have been charged in the past.
Bargain Booze has commented on the incident on its official Twitter page, saying it was an isolated incident.
However, the receipt appears to include a code for the successful ID transaction suggesting it may have already been programmed into the till.
But hey, at £2.99 a bottle of wine, who's really complaining?