Nope, no charge other than the $289 Sunday ticket cost or whatever it was with red zone. I signed up and paused the same day. They labeled day one as a “free trial” and billing was set to take place the next day. But that was the day the pause took effect.
All done online in your profile. Just make sure you set the pause right after you sign up, because it takes effect the next day, which is the day your first bill will charge. So if you don’t set the pause immediately you’ll end up being charged for the first month.