Comment by crazygringo

If you need to log in to something, yes you need always-on, 24-7 access to email or to SMS depending on how the service/account is configured. That's a very common form of 2FA. I'm not victim-blaming, this is just bog-standard security.

And what I said is "not a thing" is TicketMaster preventing you from entering an event because you've changed location and that you "have no recourse". You definitely have recourse, there are a number of ways, just like it seems like that person did.