I mailed chicks via express mail on the 21st. The P.O. said they gauranteed them to arrive by noon the following day. I had no idea they would pay up if they didn't arrive on time. Well the chicks didn't make it until the 23rd about 8 AM. I went to P.O. and ask them and they kindly let me fill out a short form and gave me back the shipping money. So my advice is if your mailing express and it doesnt' get there by specified time on the receipt take it back in and get your money back.