"Item received, but envelope and everything was ... " (more) crumpled up in the mail. Try shipping your trading card's with some type of protection besides "do not bend" written on the envelope."
"Came crumpled up in the mail, but received. Tr ... " (more)y shipping your trading card's inside of greeting cards, you can get 8 for $1.00 at the dollar store, and prevents the cards from getting destroyed by careless postal workers."