People have pointed out in other topics that these days Tesla is focused only on selling cars. They get $$$$ by selling cars. They don't get much $ in servicing cars. Moreover, having real people to do ministerial things like answer phones and provide customer service, costs them $$$.
Ironic that the more cars that Tesla sells requires more service and more customer service, yet Tesla does not reinvest some of their profits to provide better service. Instead, Tesla dedicates their profits from current sales into developing the Y, pickup, and semi, not to mention the roadster.
With all that is on Tesla's plate, there is zero margin for error with this business plan.
We have seen a revolving door among the high-level executives at Tesla over the past 3-4 years. I do not think that it is any coincidence that the customer service side of things has deteriorated. It seems that Elon Musk is a authoritarian chief executive, and if he does not cotton to ideas from his subordinate executives, they leave either under their terms, or Musk's.
Musk may have hit a homerun with his PayPal enterprise. But PayPal is merely a convenience and easily lends itself to automation, as PayPal sells nothing of tangible value. For most of us, automobiles are our second largest capital expenditure, and automobiles are definitely tangible property. One cannot apply the same business model for a purely tech idea that is easily accomplished with software and only a few individuals to research irregularities with a tangible piece of machinery that has a lot of tech that can fail and leave the owner compromised. We expect them to operate as intended, and when they inevitably do not, we expect them to be repaired promptly and with minimal inconvenience.