Originally Posted by
OsakaWino
In the past, 31 Dec (checkout 1 Jan) automatically counted for Jan, but could be manually counted for Dec upon request. This has also generally been the rule for promos that end at the end of a month.
Since it is an important threshold, I would get something in writing. You could PM the Concierge here on FT to confirm, and specifically ask if it can be credited to 2016, even if it has to be done manually.
Seems like it depends who you talk to. I received this response from the GP concierge regarding a Dec 31 night stay :
"I am sorry since you will be checking out in 2017 it will not count towards 2016 re-qualification."