Forum:Konohamaru a chunin?

Didn't Konohamaru become a chunin in the OVA #9. I'm not really sure Naruto did but he may have. Despite this, the Infobox says that Konohamaru is still a genin.

I do not not permission to edit the Infobox of Konohamaru either as a guest or signed in. I'm pretty sure of my evidence.

Evidence:

Can anyone either dispute my claim if I am mistaken or help me out correcting this issue that Konohamaru is a chunin. The kid worked hard and he deserves justice!