Trouble contacting support

I tried to contact the support team for KB Support through Facebook messanger but received no response. This is the message: “I have tried several times using both the Chrome and Edge browser to submit a support ticket on your website. Every time I do, I get the error message: “Security failed”. How can I submit a support ticket for the extension bundle I just purchased?”

This is my original support question:

I am having a problem getting the Email Support extension for KB Support to work. These are the troubleshooting steps I have taken:

1. Ensured that the domain email I am using to receive ticket submissions is active and able to receive email
2. Tested the connection to the mailbox using your feature on the email piping/server configuration page and it is active
3. Gone through your documentation several times to look for errors in my setup
4. Chatted with my host’s support team (BlueHost) to determine if the IMAP extension for PHP was installed and enabled. Their response was that it appeared so.
5. Looked in the web mailbox for the email address on the server to see if any message was sitting there.

The only issue I can find is that BlueHost isrunning PHP version 7.4 instead of the 7.2 version you have tested to, but I believe I can downgrade the version through cpanel, if that proves to be the deciding issue.

The page I need help with: [log in to see the link]