It happened to me some months ago. It wasn’t “the best” music i did for audiojungle but it was pretty close to my top seller.
Actually, I still have to understand WHY AJ hard rejected it.
Anyway, actually they indeed did me a favour.
I uploaded on another (very different) site and sold it after 15 days (single licence) for an amount that by itself was bigger than my all-time-total on AJ. There was for sure a quite big share of luck in what happened, nonetheless… I got my money, AJ didn’t. Their loss, not mine.