India, Feb. 13 -- A class action lawsuit has been filed against Amazon.com, Inc. (AMZN) in California, alleging that the addition of ads to Prime Video is unjust and contradicts the service's previous "ad-free" claim.

The lawsuit, filed in a California federal court on Friday, accuses Amazon of breaching contracts and violating state consumer protection laws.

Users, who had originally subscribed to Amazon Prime under different terms, were affected when the service shifted to making its ad-supported tier the default option for its subscribers.

Prime Video's ad-supported tier no longer offers Dolby Vision HDR or Dolby Atmos surround sound, features that were previously included in all Amazon Prime memberships.

As reported by the German we...