I Tried to grade up 3 times but nothing happpend

[Astral Trinity]

IGN (Minecraft Username): UzumakiNarut0
WHAT YOU NEED (ROLE/RANK) : grade 9
YOUR CURRENTLY ROLE/RANK (IF ANY): grade 7
EVIDENCE: I tried to grade 3 times and it didn't work - it keeps saying max grade or it just resets the timer and i'm still stuck at grade 7

 

[Infold]

REVIEWED​

- Evidence provided does not suffice the role requested;
~ Please provide a screenshot of your /grade.