Basically what the titles says?
Do you find it out in the clan App? If so, how?
Any information would be beneficial as currently when I go to the barracks and then my clan page it says we have four rewards.
earlier on its mostly backgrounds
lvl 5 you get a bodycount patch
lvl 6 2 hour clan xp
to see what backgrounds you have go to edit clan and change background
Currently there is no way to see what you've earned. But you can see what will be earned in your clan's next level. I've put a list of confirmed rewards together all the way up to Level 13 on my clan's website, will keep updated as more clans rank up!