Enformion (which operates Confi-Chek-related data services alongside Tracers.com and Endato.com) offers a "Privacy Portal" web form plus a phone line (877-820-8125) for know/delete/correct and opt-out-of-sale requests. Deletion/access requests are identity-verified by matching 2-3 data points you supply, though the policy says opt-out requests do not require verification. Note the warning that new public records arrive continuously, so your info can reappear and the policy recommends periodically re-submitting your opt-out.