Tesla Outrageous cost of repair Palo Alto CA

My car stopped all of a sudden in the middle of the road. It was towed to Tesla, Burbank.  I didn't hear back from a representative until in the evening via App message stating the invoice was e-mailed.  I never received the invoice until the next day.  The invoice total is $8,669.08, labor costs $210 an hour, for rear half shaft 36mm, powertrain, and labor costs.

The car is out of warranty so this is an out-of-pocket expense.  I was never warned of the cost of repairs after warranty regardless of how many times I asked the service department representatives what I should expect.   They gave me an estimated price of around $14,000 for battery replacement and that was it.  I never expected this type of cost these other types of issues.  

The worst part is you cannot reach anyone in the department. All communication is through the Telsa App.   They have the worst customer service ever!!!  I am completely applued, disappointed, and feel as though I have been taken advantage of.