Uber says its practices have been used for decades by private hire vehicles known as minicabs, which cannot be hailed in the street like traditional taxis
Around 3.5 million passengers and 40,000 drivers use the Uber app in London
Uber was first warned early in the year when it was given a short-term license extension rather than the full five years
The Sunday Times also quoted sources close to London's transport body as saying the move was encouraging and suggested the possibility of talks
The campaign on the website Change.org asks London Mayor Sadiq Khan to reverse the decision
Safety reasons cited for the decision; Uber has the right to appeal the decision within 21 days