Emails released on Monday by California’s attorney general show Amazon allegedly colluding with other companies to raise the prices of pet treats, khaki pants, eyedrops and other products sold online.

According to a newly unsealed court filing released by attorney general Rob Bonta, Amazon employees have repeatedly worked with vendors using its platform to push retail vendors including Walmart and Chewy to set higher prices collectively.

In one case, according to Bonta’s office, Amazon raised prices on a set of dog treats and worked with a pet treat manufacturer to convince Chewy, the pet supplies retailer, to follow its increases, effectively protecting its market share while sticking consumers with higher prices.

Amazon emailed the manufacturer a list of products with price increases, instructing the vendor: “As you noted, Chewy should be aware of this update and follow suit accordingly.”

Two days later, in an internal message, the manufacturer confirmed that the price raise had gone up on both sites, Bonta’s office alleges. The prices “that went up on Amazon immediately went up on Chewy :)”, an employee of the manufacturer wrote, according to a court exhibit.

Such is the world we live in. Competition exists only to be extinguished.