Main BON?

Hi to all. I am new here. I am a foreign grad and just passed nclex rn last october. my questions are:
1) Is there such a thing as main BON? I mean I am a RN of northern mariana islands and the thought of why I ever applied in that state drives me nuts. I cannot contact them in any form but by letter ONLY(which takes them 2 months to answer), They do not have a website, they do have email address but they do not answer (as expected)..and their telephone numbers? 10minutes in answering machine..the other one was always telling me "temporarily disconnected" (i dont know what temporary means now in the dictionary..i've been waiting for 2 months and still i hear "temporarily disconnected!")..is there a way or department I can express my concerns? say, a main nursing department who looks for all the state BON if they are doing their jobs? sometimes i doubt if there are staffs in CNMI BON...nobody is answering the phone, as if there are a lot of jobs for them like Ca BRN..
2) I want to apply for endorsement in Ca, is SSS# a must?
please somebody answer me..