www.NetBilling.com
800.750.6186 *within U.S.
+1.661.705.3876 *outside the U.S.
661.257.0914 *Fax
Click HERE to cancel your membership through NetBilling

www.BillingServices.com
888.205.2664 *within U.S.
+1.954.379.3290 *outside the U.S.
954.312.4502 *Fax
Click HERE to cancel your membership through Jettis

Snail Mail:
NetBilling Support Center
Address: PO Box 801808M
Santa Clarita, CA 91380-1801
USA

Snail Mail:
Jettis, Inc. Support Center
P.O. Box 4395
Deerfield Beach, FL 33442-4395
USA