Meanwhile in the EU every price tag for a discounted item needs to also show the lowest price that was available in the last 30 days.
https://europa.eu/youreurope/citizens/consumers/unfair-treat...
https://europa.eu/youreurope/citizens/consumers/unfair-treat...
They got sued, lost, and now they have to display it more transparently. Absent of EU specifics about how such prices have to be displayed, national courts can make their own rulings based on their national law.