Unavailable Whois Servers

Some Whois servers are frequently unavailable. The one that I have the most issues with is whois.paycenter.com.cn, maintained by Xin Net Technology Corporation in Beijing, China, which has about 750,000 registrations. Unfortunately, many are for "pharmacy" spammers and other spammers who use false email addresses when providing Whois data to the registrar. When trying to establish whether a spammer has falsified such information the paycenter.com Whois server is frequently unavailable. Is there a complaint process for unavailable Whois servers?

Dale H. Cook, Chief Engineer, Centennial Broadcasting, Roanoke/Lynchburg, VA - WZZI / WZZU / WLNI / WLEQ
http://members.cox.net/dalehcook/starcity.shtml