I am trying to contact live chat by going to https://www.samsung.com/us/support/ , clicking on Contact Us, clicking Message Us at the top of the menu, but nothing happens when I click the button. I have tried to click it when logged into (and out) my Samsung account as well as turned off ad blocker and HTTPS-Only mode, but the Message Us menu option still does nothing. I have tested on Firefox 91.0.2 (64-bit). I will be able to test in Chrome soon.
EDIT 1: I disabled adblock in Firefox and Chrome again and refreshed the page and now the message button seems to be working.