It tok me about 5 secnds to find an email addresses for corporate:
Name: Quiznos Headquarters
Phone: (720) 359-3300
Fax: (720) 359-3390
Address: 1001 17th St.
Denver, CO 80202
Original Business Start Date: April 1991
Principal: Mr Andy Isidore, Associate General Counsel
Customer Contact: Mr Andy Isidore, Associate General Counsel - (720) 931-2224 or email@example.com
Email Address: firstname.lastname@example.org
Additional company management personnel include:
Ms. Linda McLellan
Ms. Melanie Moon
Additional Phone Numbers
Tel: (303) 573-2349
Tel: (303) 573-2475
Tel: (720) 359-3351
Additional Email Addresses
I think I would email McLellan or Moon, since I don't think Attorney Aisidore would be the appropriate platform to air your complaint.
If you have not already, you should contact the franchise owner FIRST. I was unable to look up that person's or entity's information, since you did not provide location information.