Was working on an expense report and low and behold, at the bottom of an itinerary, UA charged me for reserving E+ seats as a 1k. Never agreed to it, never authorized this, yet it was charged to the CC on file apparently because I selected E+ seats during the purchase process. Now I get to go chase UA down the rabbit hole of refunds. Please watch your receipts. I hope this was a one-off, but I'm cynical enough to know that this isn't the case.