Need a contact at GoDaddy NOC

Hi. Could anyone from GoDaddy NOC, please, get in touch with me off list? One of our IP addresses is being blocked from accessing an address hosting some websites at Godaddy. Even GoDaddy's support and SSO sites are blocked. Using a different IP address for outbound Source NAT makes things work. But we would like to figure out what caused blocking in the first place to make sure we stop it happening in the future. Thank you.