October now... still nothing for me either.
I got a post card last week (dated 11/13) labeled "FINAL NOTICE" (but I'm told there weren't actually any previous notices) saying that I was mailed a check on Aug 15 but that it hasn't been "presented for payment". Hmm, I can't recall getting it.
Anyway, they provide a toll free number thru which I can ask for the check to be re-issued - which I did.
The card also says the deadline to cash the original check is December 13, 2014. The re-issued check will have a new expiration date.
The phone number is 866-274-4004. They'll ask you for the "Mail ID" shown on the post card. I don't know what they'll ask for if you don't have it.