Good luck, the post office has been getting really bad lately. We are missing a lot of mail where I work. Once I ordered a whole bunch of stuff from a cross stitch store and it never got to me. The post office said they delivered it to me and it was scanned and left at my door. In actuality it was scanned as being delivered at 6:00 a.m. before it even left the post office (that's a no no) and they refunded my money.
I can't tell you how much money we pay at work for stop payment fees, because the check never got to it's destination.
8 months later the package shows up on my doorstep, all beat up, stepped on, torn, you name it.