Impossible to update payment method


I’m trying to change my payment method, but I’m facing this error without knowing what to do:

[ReCaptcha_Validation_Failed] The request is temporarily blocked due to security reason. Reference id: 4B71491AB21D0C33

I have no captcha to check at the bottom, I’m stuck, and my old card expires in a few days so I really need to change my payment method.

Can someone help me?