Wonderous Tail Reward Bug?

Date & Time: 29/12/2020 to 2/1/2021
Frequency: Only once
World name: Louisoix
Character name: Nysa Kinrui
Retainer name: N/A
NPC name: Khloe Aliapoh
Monster name: N/A
Class/Level: Samurai/80
Party or solo: Solo
In-game time: 5:57 Server Time, 12:59 Eorzea Time
Area and coordinates: Idyllshire (5.7 ,6.1)
Housing: None
Steps:
1. Claimed Wonderous Tail book from Khloe on Tuesday 29th of December 2020 at level 70.
2. Managed to get lucky enough to get 3 rows, but was missing the full reward of a level 80 character.
3. Quested until level 80 in hopes of getting to the better reward, seeing as the exp reward updates in real time
4. Rewards didn't change (Including the Gold Certificate), despite being level 80
5. Made a support desk ticket in-game which referred me to here