They beat me to it...

Phone call from them this morning.
"your package is ready to ship, but I see you need these by Friday. If we send it ground, it won't get there til Monday or Tuesday."

me-
"Why can't it be shipped overnight?"

them-
"Well, we could but it will cost you more"

me (very calmly)-
"Why would it cost me more when you sent me the wrong size?"

silence

them-
"Oh, I didn't have that in my papers. I'll have to speak to my supervisor"