Price-comparison shopping service Idealo and 40 other European peers have accused Google of favoring its own shopping results in search and urged EU antitrust regulators to enforce a ruling against the search giant.

Two years ago, European Competition Commissioner Margrethe Vestager ordered it Google to stop favoring its own price comparison shopping service (CSS).
However, EU companies reportedly sent a joint letter to Vestager saying that the U.S. web giant had yet to comply with the 2017 order. Google was also fined 2.4 billion euros ($2.65 billion) at the time.

The signatories to the letter include Idealo, Europe’s second largest price comparison shopping service, Polish No. 1 Ceneo, Britain’s Kelkoo, and Foundem and Heureka in the Czech Republic.

“We are approaching you (Vestager) because companies like ours are endangered by Google, which is artfully avoiding compliance with the law,” the companies wrote in a letter reported by Reuters.

They said Google’s proposal to allow competitors to bid for advertising space at the top of a search page had not boosted traffic to their sites.

“As a result, more and more CSS’ have been or will be forced by Google to exit the market.”

Google said it was seeing positive results from its “shopping remedies” and more merchants were gaining traffic.

“Over 28,000 merchants in Europe are currently placing shopping ads through these third-party Comparison Shopping Services, leading to more choice for merchants and consumers,” Google said.

Earlier this month, Vestager voiced concerns about the lack of significant traffic to Google’s competitors, rowing back on previous comments about the positive impact of the auctions.