This got results!
No email reply but
my FCC has been applied to my 15 day Sky TA as I asked
and
the $50 OBC has been applied to this booking also.
So, I have lost out of using a $100 pp FCD with $100 US pp OBC.
No more FCD for me and I have found a good, local travel agent through the 3 day sale I will give my future bookings to.