After serving my unspecified, un-capability-to-talk-to-a-support-nor-create-a-ticket, suspension, I was placed with endorsement level 0.
To my surprise, at this endorsement level, you are incapable of talking in chat nor voiceline.
I played a dozen or so games muted, gained enough endorsements to get to endorsement level 2, regained my capability of chatting/talking, and logged off for the night w/o saying a word.
Logged in the next morning to find my endorsement level back at 0
??? Come on Blizzard