on 06-25-2011 04:22 PM
In addition to what Luc said:
Linden Lab Headquarters
945 Battery Street
San Francisco, CA 94111
+1 (415) 243-9000
Note that this number is not Second Life Support.
Please note they will not deal with Support issues on this number if that is what you had in mind.
If you phone the Billing Support number Luc gave you, you'll hear a menu, I think pressing 1 is Support. I've never pressed it and I suspect if you do, you'll merely get a recorded message on how to submit a ticket.
on 06-25-2011 04:20 PM
The billing numbers that Luc listed are the ones most people want. If you are looking for a job with LL, though, you might try (415) 243-9000. Note that this number is not Second Life Support , so don't call there if you have a support question. Their Fax # is: 415.243.9045