Hulu thinks all my IP addresses are "business class", how to reach them?

I've been offering residential and business ISP services for a long time. Hulu recently blocked my customers from accessing their service, because my ARIN IP address blocks are "business class" instead of residential. I've tried to find a contact for them as I am not a customer, the supportrequest@hulu.com address mentioned in NANOG previously is just an autoresponder that says open a ticket online (once you are logged into your account). Does anybody have a contact for them that I can discuss what they are looking at to determine if my IP addresses are "residential" vs. "business" class? Thanks.