SAN FRANCISCO — The Federal Trade Commission sued Uber on Monday, claiming it used “deceptive billing and cancellation practices” to support Uber One, its premium subscription service. The lawsuit is the first filed by the commission against a major tech company since President Donald Trump returned to office.

In the complaint, the FTC said Uber had enrolled some of its customers in the $9.99 monthly subscription service without their consent, misled them on the amount of money they would save and made it “extremely difficult” to cancel their subscriptions.

The lawsuit is the latest in a string of actions taken by the FTC and the Justice Department to pressure tech giants like Google, Meta and Amazon into changing their business practices.

Uber disputed the FTC’s claims that it had used deceptive business practices and misled customers.

“We are disappointed that the FTC chose to move forward with this action,” said Noah Edwardsen, an Uber spokesperson. “Uber One’s sign-up and cancellation processes are clear, simple and follow the letter and spirit of the law.”

The lawsuit claimed that Uber customers had been wrongly promised savings of $25 a month if they signed up for Uber One, which did not take into account the cost of the subscription. Other customers said they had been billed for the service before their free trial period ended.

The FTC also claimed Uber had violated the Restore Online Shoppers’ Confidence Act by making it difficult for customers to cancel their subscriptions, which included having to navigate “as many as 23 screens and take as many as 32 actions to cancel,” it said.

Uber One has more than 30 million subscribers, according to the company’s most recent financial filing, up 60% from a year ago. Customers who pay for the service receive credits for transportation booked on the app, waived delivery fees on food orders and exclusive promotional rates on some rides.