I cant save my payment information

Ok so I need help. I have been trying to set up Cloudflare access on my site to only allow certain people to use it but to set up and application I need to choose a plan. So I chose the free plan because I’m not so sure about it yet. And sure enough it makes me save my payment info and address and when I enter all the information in it doesn’t let me save it. I click the button and it does NOTHING! Please help me