Simple, send it to the address and contact listed in their whois record.
On Apr 21, 2009, at 9:40 PM, Christopher Morrow wrote:
where do you send the bill? For some even large organizations I've seen bills get shuffled to random places that didn't deal with 'bills' and then get dropped. Not everyone at these places understands what an 'ip address' or 'number resource' or 'ARIN' is... or what those things mean to the 'business'. This really isn't a simple thing, it's really not something that ARIN can go cowboy up and fix. (not for lack of trying over the years of course) -Chris
