Originally Posted by
tth6133
You need to know exactly what to do when calling Marriott and what happens each step along the way. Don't assume the agent knows more about it than you do. A lot of things can go wrong this last week before the programs merge. Time is not on your side to correct any mistakes, either by you and the agent.
Some mistakes don't become apparent until later. I know some of the codes for partial travel packages and I am aware of the correct way to change one, but that doesn't mean that what I request always happens. Although I was logged into my accounts while changes were being made, I didn't realize that an agent cancelled a hotel award and booked a new points reservation instead of just adjusting the reservation dates until much later when Marriott updated the transactions.