Kate Spade New YorkPark Stripe Case for iPhone 11 Pro,Polycarbonate,Shock-Absorbent - Defensive Hardshell with Cream Bumper

Why does this case say iPhone 11 Pro Max and i kept receiving the wrong size?

Is this an authentic Kate Spade case?

Does this have a open slot behind the credit cards to put cash? Or does it only hold cards? Pictures doesn’t show if there’s a place for cash

I am a few days late in returning my case, can I still do it?