Mine said that too. My partner says the "dock" where she works is the area behind the reception desk.
My best advice--1. Don't panic if you don't get update emails from Sheffield (a good chunk of us didn't. And we panicked whilst waiting lol). 2. Keep checking the UPS tracking site (again a good chunk of us found out parcel was on its way back from UPS before we heard from Sheffield) (I got "decision" email from Sheffield same day that parcel arrived)
Good Luck.