Reporting false positive

An Avast user of our site https://fairbreak.net has been blocked due claimed malware.
The site is clean as scanned by virustotal.com:
https://www.virustotal.com/gui/url/a560dbe12f4ddba162e3f855e4022d5270d601e7c3580ae1e808f839e14afad5/detection
I have attempted half a dozen times to use the False Positive Report form as recommended at: https://www.avast.com/false-positive-file-form.php
It’s obviously a simple form with basic entry requirements but no matter what I do, the form fails to submit and return any confirmation. After hitting Submit it simply returns me to the same screen where I see the entries I made.
What else can be done to submit a False Positive Report request?

Since my first post, I can see the Recaptcha image selection panel is now at least appearing, but despite accurate selection the form is still not submitting properly. I look forward to Avast fixing this.

https://forum.avast.com/index.php?topic=249241.msg1584179#msg1584179