McAfee SiteAdvisor Removal

Our web site has been incorrectly listed on McAfee's SiteAdvisor service as "SPAM URLs". We offer dedicated servers to clients and I suspect that one of them was in the same /24 block of IPs. I have tried numerous times to get removed and have been unsuccessful.

Does anyone have a contact at SiteAdvisor or can someone contact me off-list to get this taken care of? Thanks in advance!

Best Regards,