FYI to posters here
I've had a Redbox account since they began used to use all the time till they did update and more price increases & got into streaming
Anyway about your issue They've always wanted and had my credit card info to charge & when I earned freebies still needed - If your unaware you must scan card on account at the rental boxes its how know its you picking up... its just a fairly common practice
I've never used their streaming its high $ & I use others
As Marylin said kinda wonder why need then but most companies do For my Amazon Prime Video account it has my credit card linked
So I feel certain saying its not a scam or such just their policy You should be safe setting up cause I sure wouldn't want lose all those points nor $50 worth movie rentals you can cancel your account once used if no longer desire use their services
Hope this helps good luck
Ginger ; )