Why does Samsung Pay need access to make phone calls and read/send text messages?

Not that I particularly care but I think it's a little strange that this app in particular needs access to all of this stuff. Am I downloading the correct app and/or are there "fake" samsung pay apps on the play store I need to watch out for?

Edit: Guess this is a moot point for now - only have Wells Fargo, none of the other banks approved to work.