Do you have documentation (printout or screen shot) that shows what you booked - ie, the 120+24? If so, that should overrule any change. Talk to Marriott ressies or if you have a problem, PM Marriott Concierge and ask for assistance. That's a 61GBP/night increase.
Cheers.
Last edited by SkiAdcock; Sep 17, 2012 at 10:47 am
Reason: fixed a typo...