I agree with Dave the Wave. We also booked through RCI directly with no problems. Our sailing has increased in price since we booked, as well.
You're right....it certainly is a nightmare! However, it's not as bad as the folks who thought they had their cruises paid for, only to find out at the dock that they had to pay additional HUNDREDS of dollars in order to board! I'm sure your TA and RCI will get things squared away for you. At least you found out now and not at the dock, right?
By the way, thanks for all of your reviews and postings about your other cruises.....they've been an enormous help to us. Are you going to stay on board 3 weeks this time? : )