There have been many, many threads on this issue. You have two choices - you can Contact Help & Support, or you can try crafting one more object for her. If you got the quest way back when the requirement was 5 of each item, and didn't finish it until now, there is a glitch that won't register it as finished unless you craft one more thing.
Aha this happened to me too. First of all, check your bank and your backpack just in case you are missing one or it overflowed. Second, if you are missing some, either craft another one or go to the bazaar and buy one since it already reigstered for you CRAFTING them you just need them in your backpack. It happened to me when i accedently stole a Stinger of the Scorpion.