Uber was found to be unlawful in Argentina, including for operating without a permit or tax-identification number.
A series of injunctions ordered the company to cease operations, and ordered telecommunications vendors and payment processors to cease supporting Uber. The Stanford Center for Internet & Society explained:
Shortly thereafter, a criminal prosecutor from the City of Buenos Aires issued an injunction ordering ENACOM (Argentina’s FCC) to block the UberApp. Apparently, ENACOM refused to comply with the injunction arguing that a local prosecutor was not a competent authority to order such a measure. On April 22, a criminal judge from the City of Buenos Aires ordered ENACOM to block Uber within the City of Buenos Aires jurisdictional limits. It is not clear whether ENACOM, a federal agency, will comply with a City of Buenos Aires order. Content circulation through communications networks is a federal matter in Argentina, which is supposedly beyond the reach of local government jurisdiction.
Finally, the Consumers Protection Agency of the City of Buenos Aires—an administrative agency—issued an injunction ordering telecoms to block the App and credit card companies to block any transaction related to the App. The injunction was issued against telecoms and credit cards as “contributors” to an allegedly harmful activity. A few days later, also a judge in Buenos Aires ordered credit card companies to cease their operations with Uber.
Nonetheless Uber continued operations, including encouraging Argentina users to pay via a Bitcoin-backed credit card.