Don't know about USPS but I had a package delivered by UPS to the wrong house. I e-mailed Jessicurl's CS and Matt (I think) e-mailed me back less than 30 minutes later and within minutes UPS called. Turns out, the UPS person delivered my package next door and I didn't recognize the last name on the signature(I knew their first names only). Anyhow, Jessicurl (company and person) is really great at following through with it's packages so contact them!
Read to your bunny!