You should try calling that number if you haven't already. I just noticed it showed up a day or two before my install the other week. Up until then, having an advisor assigned meant nothing. When you called in to their extension, they would never answer, and it would just go to the general pool. When I had concerns about how they wired up my strings after install, I wanted to try to get one of the earlier reps I spoke with that I found helpful (I never managed to speak with the person named in my order). I had this rep's extension from an email follow-up he sent me, but when I tried calling it, again it just went into the general pool. Out of desperation, I called that new number and was routed to an advisor that said he had just been assigned to me, and it would be truly "permanent" now. The last few times I've called that number to discuss my wiring issue, afraid to get another random advisor and having to explain my situation each time, but when the automated voice says "connecting you to your Tesla advisor," I've actually gotten the same rep each time. It's actually working like it should, and my advisor has been very accommodating in trying to address my concerns. I saw in some other threads or forums that a big overhaul in the customer service and how project advisors are handled may have literally happened within the last week or two.