So discovered an issue the other day while I was in Shenzhen.

I use a VPN on my phone and didn't realize that this would cause problems when pinning your location. When you use a VPN on your phone, it will default to Google Maps (assuming its accessible) which does not line up with the Baidu Maps used by Drivers here. In fact, it was so far off, the driver ended up calling me and I had to give him directions to my location which ended up almost a kilometer away from me from what he was. He showed me his phone when he arrived and I was dumbfounded how far off the location was.