QCS? They called but did not leave a message.  I called them back. Guy said it's QCS. Wanted the number i was calling from so i hung up.

Qualia Collection Services
1444 N. McDowell Avenue
Petaluma, CA 94954

Tel: (800) 433-5709
Fax: (707) 665-2135

https://payqcs.virtualcollector.net/Contact.aspx

This site provides a confidential, discreet and hassle-free resolution and payment of a past due account. Please have the communication letter you have received from us ready as you will need it to log in.

If you do not know your account number, please Contact Us before returning to make the payment.