Unblock Community Disaster Support Nonprofit's website

Hi Xfinity, the site for our community disaster support non-profit has been blacklisted to Xfinity users, which is a big part of our community members and organizations in need. How do we get it whitelisted as soon as possible? Asking people to disable their Advanced Security (as suggested in many threads) is not an acceptable solution. URL = www.CorbettCOAD.org - thank you!  [same issue as xFi Advanced Security is blocking my company's website  and many, many others]