The moves represent a significant hardening of the commission's position on Uber… Victorian Taxi Association spokeswoman Georgia Nicholls welcomed the commission's move. "It's a very difficult position that the regulator has been put in, to deal with companies that have no regard for the law," Ms Nicholls said. A commission spokeswoman said it sent Uber a cease-and-­desist letter on October 23. "By doing so, the TSC has made it clear to Uber that its UberX product is illegal in Victoria in its current format," she said… Uber's high-end Uber Black service, which uses accredited drivers and licenced drivers, was legal and welcomed by the commission "as it increases competition and provides more choice for passengers". However, UberX drivers use their own car to pick up fares booked through a smartphone app. "Unlike the Uber Black product, UberX does not generally use accredited drivers or licenced vehicles, which means the service is operating outside the law.