Could not reach customer service at all. My wife couldn’t find the return address. We contacted them in advance as required, but they didn’t respond on WeChat. They did answer the phone but we still couldn’t find their staff, which caused a 30-minute delay and almost made us miss our flight. We understand the challenges of running a small business and the difficulty of finding parking, but if they continuously fail to provide good service and don’t respond to customer WeChat messages, how can they sustain their business? Imagine if a customer had a problem with the car on the road and couldn't reach them; wouldn't that be a huge issue?