I booked online and made all my payments that way too. I got the code from Mousesavers.com and then called Disney the day it began and they upgraded it and credited the difference back to my credit card. Very easy, at first the CM said I couldn't get it with the standard room, so she'd have to put me in water view, I asked what the difference in price would be and she said I'd be getting money back, so heck yeah. Better room for less??