Sorry to bring this up, but I want to say thank you for sharing this information, it helped me. For about two days I couldn't log into the website properly, because the captcha kept popping up, and you know, I clicked on the right images, but it kept repeating. I was insanely nervous. My friend had the same problem, but he solved it in another way. He was advised to use web scraping  . Because he travels a lot and his IP address changes all the time. That's why the bot checks come up.