UPDATE: I left a voicemail at Moondrop (yes, the outgoing message said "Thank you for calling Moondrop) last Friday, 8/30 and still have not heard back. So...
8/20: Order placed. Received an "order received" email as well as an "Invoice" email
8/21-8/25: nothing
8/26: Attempted to login to the account I created with order, cannot do so. Used website's "forgot password" function and it emailed me a blank username and a password that was a giant website url. Weird
8/26: Attempted to contact Moondrop via their "Contact" link. Received confirmation email that included a "case number"
8/26-present: no response of any kind
8/30 - left Moondrop a voicemail with my name, invoice #, and cell phone number at phone number from their website
8/30-9/4 and beyond... - zilch