[playtowin]

wow.

Here's an idea: how about calling them up, and flipping out on them because you say that you already sent them a thank you? Just claim that you sent a thank you at the beginning of the semester, and you don't understand AT ALL why they didn't get it/freezing your money. Just flip out, tell them you sent it, and tell them if it's that big of deal, you'll send another one... but make them look like the bad guy.