Is there a way to contact a live Uber customer service rep in Michigan (or elsewhere) regarding questions? Is there a way for Uber to confirm whether you're successfully online with Uber (partner app) and ready to accept rides? During my first night -- a busy local festival night in the region -- I received NO ride offers from 5 pm - 10 pm! I've seen many videos and think I have a good understanding of everything I'm supposed to do. Wondering if I was actually online, available to accept rides. It looked that way on the smartphone screen -- unless there's a technical glitch or I'm doing something wrong. Advice would be appreciated! (FYI: Using the Uber partner app on my Android phone.) THANKS!