[nznog] Vodafone / old ihug static ip ranges on sorbs blocklists?

Hi Im looking for contact details for someone at vodafone that I can talk to regarding a static ip address or possibly a block they are issuing to customers in their static pool being listed in the sorbs antispam database as a dynamic ip address. This entry dates back to when the ip address was ihugs. It is preventing one of my customers from sending email to recipients behind a sorbs antispam filter / Land Information New Zealand. Im thinking the right person to talk to would subscribe to this mailing list. Thanks, Ray Taylor