Can connect to bt home hub with WPS but not WEP?

I'm staying at a lodge that i've rented, i'm using a samsung galaxy and can connect to the bt home hub using WPS button but my friends are using iphones and using the WEP key and admin password won't let them connect?

Same when trying to connect using my xbox 360

Is it possible the owner has changed the password?
Why would they do this to a property in the middle of nowhere?

That is a question you will need to ask your ISP. (Internet Service Provider)

Logging onto a hub/router has nothing to do with ISP - Router is a User equipment not a Service provider equipment.

And yes… Means the user change his/her credentials for logging on to their network.

Also WPS is a bypass now a Security Protocol which is why you don't need credentials to log on.