https://www.theguardian.com/uk-news...by-the-date-for-rides-on-brighton-palace-pier
I believe the technical term is "whoops"
The pier – which is largely cashless – blamed the fiasco on the processing company Worldpay, which it said had used the date of the transaction instead of the actual amount in each case.
Worldpay, which is now working to provide refunds, then compounded the anger of customers who contacted it by refusing to engage with them on the grounds of data protection.
I believe the technical term is "whoops"