Glad to hear service is so on top of keeping you aware of what is going on. I'm also glad to see they provided you with a Tesla loaner. My biggest disappointment in finally being able to afford Porsche GT car has been that they would not even provide me a Porsche loaner when the car had issues. I do believe that after this many service issues in such short time, that they would offer some time of simple gesture of thanks for your continued patience [one month of your loan/lease paid for you, floor mats, free dual charger, free center console, or something].
Call Porsche and complain vigorously, and Google "Porsche dealer", move to the one with 4.8-5 star, >20 reviews. Byers in CMH provides Panameras.