Are u sure we could combine different rates stays even they are consecutive? I have failed one month before since the diamond line reps told me that if you want to combine it then it would be different rates(higher rates) for the whole stay and I think that is the reason why OP book the room separately.
Originally Posted by
FXEpilot77
You should be able to call and combine them, in which case you should be able to use one upgrade.