Every ATC facility has a separate quality control oversight element. You can get the phone number and talk to these guys and have them do an investigation into it. They invite this sort of stuff to keep their operations running well, you also sometimes learn stuff that you didn't know. In some situations, there is some controller discretion, in others there is not. There are trainee controllers and some of them "don't make it" past the trainee phase, not to mention correcting seasoned controllers and getting back to "standardized".