We were in WDW last week and I made the mistake of looking behind the fold down bed . Empty water bottles, small child's cammy, skittles, gummy bears and a huge amount of dust bunnies (they looked like this .) My wife didn't want to have it cleaned in fear they would just make the mess airborne.

You may (or may not) want to look behind there...

Where can I send an email to CBR to alert them since I forgot to leave a note?

Other than noticing CMs are kind of curt in crowd control these days...it was awesome!