A federal appeals court has revived a proposed class action lawsuit against Facebook Inc. brought on behalf of non-Facebook users who claim they’ve gotten unsolicited texts from the company in violation of a federal robocalling statute.

The U.S. Court of Appeals for the Ninth Circuit reversed a lower court decision that had tossed a lawsuit brought by Noah Duguid, a non-Facebook user who claimed the company violated the Telephone Consumer Protection Act (TCPA) by mistakenly sending him security messages meant to alert users when their account had been accessed from an unrecognized device or browser. Duguid claimed that Facebook failed to respond to his multiple text and email requests to stop sending him the texts.