I am leaning towards the St. Pancras and checked out the lounge availability in the Marriott Master Thread of Open/Closed Lounges.
What does this mean?
London / St. Pancras Renaissance / OPEN;....... Upgrades to Chamber rooms are not available for free, but can be upgraded for 75GBP+VAT charge/night;.....
Does this mean I can update my booked room to a Chamber room for only 75GBP/night? Do I just call Marriott Reservations? Do I have to contact the hotel directly?