How long to change Optional Thumbnail for track?

tips-and-tricks

#1

Hi here is my first track!
http://audiojungle.net/item/motivational/15221781
but what is problem - i thought it’s easy to change Optional Thumbnail for it and can takes 1-2 minutes. I send new logo for this track - about 3 days ago and they still don’t change it.
Who knows, how long as usuall does it take?