I would like to name and shame him but at this point I still trying to be nice and hoping that PADI comes to the party and takes some sort of action
If you have made it this far, i'm sure concerns about shaming him are past tense. There are always two side to a coin. I'd like to hear what the instructor has to say about it. If that takes you naming him so he can be tracked down so be it. Then he will have the opportunity to come here and defend himself. Or would you prefer this to stay a one sided story, with no means of proving you are right? Whats the end goal here? Do you just want to vent or do you want a resolution?