The retailer advertised reductions on products on which the final sale price was "substantially the same" as the pre-discount price and blocked orders from customers who had previously returned more than a certain amount of purchases, the regulator said in a statement.

YNAP did not immediately respond to an emailed request for comment.

The regulator said the violations took place between 2019-2022.

The business was controlled by Swiss luxury group Richemont until last year, when it sold a majority stake to luxury e-commerce specialist Farfetch and Dubai Mall developer Mohamed Alabbar.

($1 = 0.9229 euros)

(Reporting by Alvise Armellini; Editing by David Goodman)