Hi all, looking for some advice to see if this is award redemption is possible, getting mixed messages when calling Diamond line. Looking to stay for 6 nights next year which currently shows as available with Standard Reward (120k) for the Sunrise Overwater Villa.

We are looking to use the following for the stay:
Me: Free Night Certificate x3 + 120k HH Points
Girlfriend: Free Night Certificate x2

It seems that the Sunrise Villa has a min 3 night stay for the Standard Award which is causing the Diamond line trouble to book my girlfriends FNCs. Has anyone attempted a mixed FNC booking like this before here?