Have a Question About Billing?


Select from the menus below for answers to commonly asked questions in each category. Can't find what you're looking for? Phone customer service at 1-800-853-4288 between the hours of 7 a.m. – 12 p.m., and 1 p.m. to 5 p.m., Monday through Friday.

Mailing Your Payment

Please remit payment to:

Sonora Quest Laboratories
P.O. Box 52880
Phoenix, AZ 85072