>> Uber has lodged its appeal with a London court to overturn the city's decision to take away its taxi license. It's the start of a legal battle that will decide if the app can stay in its most important European base. London regulators shocked the company last month when they announced it would lose its license.
Officials siting concerns over Uber's approach to background checks for its drivers and the way it responds to serious crimes involving its service. City Police have previously complained that Uber was either too slow to report incidents or failed to report them at all. Uber will continue operating until the appeals process is exhausted, which will take several months at least.
The company sending out this email to customers on Friday, reminding them that they are still around, even though their license has technically expired. A Reuters analysis estimates that London accounts for about half of Uber's net sales in Europe. That means losing the city could throw into doubt the viability of its entire operation in the region.
Uber's already been hit with bans or partial bans in a number of other countries. The struggle to save its license in London, one of multiple legal challenges in the UK alone.