I recently donated and spent Royal Points and bought a Royal Hair Coupon. I kept trying to get a hairstyle on my alt character Fimello, but it keeps saying there is a problem and to try again later then I go back hours later and it still doesn't work is there anyway to change. Is there any way to fix that?
Royal Coupon for hairstyle/face can only be used in Free Market via Big Headward NPC, generally for more fancy styles. Every other classic hair/face changing NPC you find outside the Free market requires coupons that can be purchased with mesos. The screenshot you posted shows you at Henesys Hair Salon where the use of the Royal coupon isn't applicable.