Many people have reported that the survey link I posted in the last update doesn't work.
I have no idea why, it works for me, and is the link provided inside Kickstarter.
Perhaps the link in the original email you would have got will work, I didn't get a copy of that, but one link someone sent me didn't work either. Perhaps it simply doesn't work for those who have already filled it in?, but that shouldn't be the case because I set the flag that allows you to change your address.
Perhaps there is a way to see this inside Kickstarter once you log in?, I have no way to test that though, sorry.
In any case, if you did not receive an email from me in the last few days reminding you fill out the survey then you have nothing to worry about, I have your address details.