Apple on Monday appealed what it called an “unprecedented” 500 million euro ($586 million) fine issued by the European Union for violating the bloc’s Digital Markets Act.

“As our appeal will show, the EC [European Commission] is mandating how we run our store and forcing business terms which are confusing for developers and bad for users,” the company said in a statement. “We implemented this to avoid punitive daily fines and will share the facts with the Court.”

Apple recently made changes to its App Store’s European policies that the company said would be in compliance with the DMA and would avoid the fines.

The Commission, which is the executive body of the EU, announced its fine in April, saying that Apple “breached its anti-steering obligation” under the DMA with restrictions on the App Store.

“Due to a number of restrictions imposed by Apple, app developers cannot fully benefit from the advantages of alternative distribution channels outside the App Store,” the commission wrote. “Similarly, consumers cannot fully benefit from alternative and cheaper offers as Apple prevents app developers from directly informing consumers of such offers.”

Under the DMA, tech giants like Apple and Google are required to allow businesses to inform end-users of offers outside their platform — including those at different prices or with different conditions.

Companies like Epic Games and Spotify have complained about restrictions within the App Store that make it harder for them to communicate alternative payment methods to iOS users due to the 30% cut Apple takes on in-app purchases.