I have a room booked at BC CL for a week starting August 21. We are thinking to moving our vacation back a week with first arrival day on August 28, but we can't decide for sure for a few more weeks, due to my husband taking a new job. Should I go ahead and add the new week to my existing reservation and then cancel the part that I don't need later? I'd hate to miss out on definitely getting my room at the BC with the 40% discount.