Bypassing Really Simple CAPTCHA image folder

Hi:

I need to bypass the folder wp-content/uploads/wpcf7_captcha
I have triyed everything, reviewed this topic https://www.ads-software.com/support/topic/can-i-make-an-exception-for-specific-post-image/
and inserted RewriteRule ^wp-content/uploads/wpcf7_captcha - [L] in .htaccess in multiple locations, root included, but nothing.

Thank you.