USJ: Trying to buy 2 Universal Express Pass 7, only letting me get 1

Hey guys, I'm super confused on these tickets. This ticket website is a hot mess.

I got two studio pass tickets, one for me and one for my wife. I keep trying to add 2 tickets for the express pass, but it keeps changing in my cart to only '1' ticket.

We need 2, correct?

by irateworlock54