Here's one that I got from Enterprise Car Share, a ZipCar competitor (red highlights mine; personal information removed):
from: Enterprise CarShare <firstname.lastname@example.org>
subject: Enterprise CarShare - NEW Reservation Confirmation
NEW Reservation Confirmation
Your reservation details as of Thursday, September 24, 2015:
Vehicle: [car details] Start: [start time and date] End: [end time and date] Total Time: 7 hour(s) Reservation ID: [reservation ID]
Distance: $0.00 Taxes: $20.87
Estimated Additional Fees: $0.00 Total: $125.87
We are committed to exceeding your expectations. If there is anything we can do to make your experience better, please call us at 877-411-6468 or email us at email@example.com
and let us know how we can help.
Nonetheless I am sure that many people just hit reply and send their customer service inquiry into a black hole, because most people don't read to the bottom of very long emails with a lot of extraneous information. This experience never turns out well. And yet it is so easily solvable:
Please DO NOT REPLY TO THIS EMAIL. For problems or emergencies with your reservation, call our 24-hr vehicle and roadside assistance line at 877-411-6468.
Right there, on the very line above where Enterprise shouts at me DO NOT REPLY TO THIS EMAIL, they give the address to which I should send write for customer service.
To fix this: send the email from the customer service address. Or change the reply-to address to the customer service email. Either way, don't make me as the customer have to figure out that I need to copy-paste a new address to the To field.