Yep they are and probably names too, I finally got to a supervisor and he started right off with the "we have already provided you with all the relevant information, we will now be disconnecting the call" and hangs up. Called back,new number, same fake name and got the disconnect speech again.
Pretty sure Visa is recording phone numbers now, I have called them several times now. Last few times as soon as they pick up I get "we have already provided you with all the relevant information, we will now be disconnecting the call" and hangs up before I can even speak