Where you guys find Tesla Chat?
On the designer page.
It's the elusive 'Tesla Chat' bubble that has a mind of its own, and comes and goes as it pleases, a bit like the cat come to think of it. I haven't discovered a way to make it arrive. I do bait it though. if I pretend I'm not looking it does appear to try to suggest it has a sense of humor.
(I know I'm not helping, but it really does appear when it wants to). Assumably, when the reps aren't busy and come on line it appears... only a random guess though!