Your customer number appears on the mailing label of the print BSSA. If you no longer have that, please contact Seismological Society of America:
Office hours are 9 a.m. to 5 p.m. Pacific Time
Seismological Society of America
201 Plaza Professional Building
El Cerrito, CA 94530
510-525-5474
510-525-7204
info{at}seismosoc.org
