Hopefully there isn't one... But who knows.
Anyway, iStock Audio suffered massive contributor drop-offs and the ones who stayed pretty much stopped uploading because of the ridiculous new terms. $1.50 royalties... That's less than 10% of what you would get at Envato, or about 5% of what many people are getting at P5. And those two sites sell A LOT of licenses. Just doesn't make sense to stay at iStock Audio.
Hopefully Getty realized this and won't kill it off right away...