So since the Kickstarter ended I've moved three times, and each time I have sent a mail to RTG requesting a change of address in case rewards ever got sent out, and each time I have never gotten a response, save for the automated one. Now this time, as the release of the game is actually nearing, I feel it's important that this is done. So I sent another mail a couple weeks back, and still no response, same as ever. I also messaged them once on Kickstarter a year back or so.
What will I have to do to make sure that the change of address is registered?