The U.S. Supreme Court on Monday declined to hear Google's appeal of a lower court ruling in a suit alleging the company used deceptive practices in the sale and placement of advertising through its AdWords program between 2004 and 2008. Google, a unit of Alphabet, sought to overturn the 9th U.S. Circuit Court of Appeals September 2015 ruling that the lawsuit could go forward as a class action case. The case, originally filed in 2008, alleges that Google placed clients' advertising on parked domain and error pages.