URGENT: Safebrowse.io AKA Advanced Security - Blocks Websites with NO transparency or reasonable path to resolution

I am a web developer and an Xfinity customer.  One of my clients' websites has been blocked by the "Advanced Security" feature which is on by default in most Xfinity home networks.  I have used the reporting tool several times over the past week, and have encouraged my client to do the same.  

We get confirmation that the report was received and may take 3 days but no resolution or further communication now after a week.

Turning off the "Advanced Security" does allow me to access the website while on my Xfinity network, but that is not a solution.  Xfinity needs a better and more transparent system if they are going to act as censors to the Internet, and allow reasonable recourse and remediation for any business or individual affected by their blocking.

It may be that the client's SSL expired at one time over the past year, but we have since migrated to a new host and installed a completely new SSL provided by a different vendor.

The site is  https://iycwm.com

PLEASE CONTACT ME to guide this issue to resolution!