same here man. I don’t see an email anywhere pertaining to a survey from/relating to Tree of Savior in my inbox/spam folder or any other folders in that matter.
Nope not there. 
Yep found it on spam.
Nevermind.
I didn’t receive it 
I don’t receive any emails from IMC games. I didn’t even get a beta key email even though I was accepted and it was visible on the main page. Hopefully it gets fixed soon.