I do not think Tesla blacklists. My own personal account during 2022 resulted in no blacklisting.snip…And then if you complain too much they blacklist you.... 'no soup for you!'
My car had significant alignment gaps between 3 doors and adjacent panels. The trunk had some misalignments too.
Sc #1 everything was in spec but they claim my door with no issue was out of spec and “fix it”, resulting in a new misalignment.
A month later I took car to another SC and asked for the issues to be addressed. I didn’t mention that I had taken the car elsewhere before.
The second SC said all except one issues was out of spec. They sent car to a body shop. Car came back with all issues corrected.