A wide-ranging lawsuit filed Friday outlines a moneymaking scheme by which large insurance sales agency call centers enrolled people into Affordable Care Act plans or switched their coverage, all without their permission.

According to the lawsuit, filed in U.S. District Court for the Southern District of Florida, two such call centers paid tens of thousands of dollars a day to buy names of people who responded to misleading advertisements touting free government "subsidies" and other rewards. In turn, sales agents used the information to either enroll them in ACA plans or switch their existing policies without their consent.

As a result, the lawsuit alleges, consumers lost access to their doctors or medications and faced financial costs, such as owing money toward medical care or having to repay tax credits that were paid toward the unauthorized coverage.