@Grivusangel -- Really? Seriously? Sounds like your landlady needs to get a clue! You don't do your renters that way if they're good to pay their rent in full and on time. Geez.
I had to track a money order to a credit card company. They said they hadn't received it. I sent it registered mail, return receipt requested, and got a signature they had received it, but that wasn't good enough. I had to track the darn thing, and sure enough, it was cashed. They had the money and had to shut up. I like it when I'm right and the credit card people are wrong. Makes my day!