A little update on my Marriot situation – I did get in touch with them and managed to get what I needed and I’m simply awaiting the refund on the hotel AND some additional funds to make up for the overdraft charges.  Two things to learn from this:

1) Marriot is actually OK and their customer service line is helpful

2) It doesn’t do anyone any good to get angry and start screaming and yelling.  I was polite through the whole thing, kept my sense of humor and tried to be cooperative.  The customer service rep actually thanked me for my demeanor and I do think it made a difference.  Now, if they hadn’t cooperated on THEIR end, I would have gone off the wall on them, but I didn’t have to.  Its symbiotic, I guess.