I really doubt that:
https://www.wilmerhale.com/pages/publicationsandNewsDetail.aspx?NewsPubId=91329
Two cases in Germany:
- Product sold at a price 10 times lower the market value, Judge ruled in favor of the shop.
- Product sold at half the price of the market value, Judge ruled in favor of the customers.
Two cases in UK:
- Product sold at a price 100 times lower the market value, solved privately between shop and customers.
- Product sold at 3 times lower the market value, company surrendered and gave the reason to customers before judgement.
Another case from Spain:
- Product sold at 15 when its market price was near 300, the shop was santioned with 9200, don't know if they also had to send the item to customers.
https://www.facua.org/es/noticia.php?Id=3651
So, you can see the customer always win unless the princing error is several times the market price.