I have also updated my address in Kickstarter and wanted to inform Pimax. Thankfully I found this topic, but I could not find where a "new message" button would be (in the Messages screen).
I read above about the system automatically upgrading users with activities. Since I haven't had any activity, this message would be the first!
@Heliosurge Should I post content in other topics in the forum (relevant to each topic ofcourse) to be able to send a message? Or would posting here be enough?