Chinese ride-hailing platform Didi Chuxing said it’s improving its emergency safety feature after a woman revealed flaws in the service, The Paper reported Tuesday.

The Guangzhou-based passenger, whose driver initially refused to let her out of the car after a dispute on Sept. 7, said the current feature allowing passengers to quickly call the police is not convenient. She added that users are then required to verbally provide details of their location and vehicle while in earshot of the driver. Didi introduced a range of safety measures after two passengers were allegedly murdered by their drivers in May and August.

On Monday, authorities in Guangzhou found that both the driver and the car involved in last week’s incident were not licensed to provide ride-hailing services. (Image: VCG)