If you're American and you ever gave access to your email account for new connections.... Which I am sure is lots of people here... Go fill in the form at:
https://gilardigateway.com/addconnectionssettlement/Claimant/UnKnownClaimForm
You can change the country and put in a non-US address, so surely it must be anyone who did it not just American LinkedIn users.
Thanks Jim. I've just applied and we'll see if $1500 makes it's way over here ;)