Keys for CPU play?

Hey all, I promise I was searching first but so much results are spam. I just got Madden 26 to fill the old Blitz itch, and I like this UT mode, but I was flabbergasted by the key requirement to play vs CPU. As I understand it, my only option for more keys are the weekly login and doing a full weeks worth of challenges, is that right?

In addition, the login just doesn't seem to click. Do I log into the game, login to some app, or login to the site here? I swear I've tried all 3 and don't have my silver key and it's driving me nuts because I otherwise like this game.

I know challenges are there, but I want to play full games, and I'm too green to stand a chance vs most human opponents....