If you are not completely satisfied with your Sigma order, simply call or email us at the contact information listed below within 30 days from the date of purchase to receive a full refund.* Our customer service representatives are available from 9:00am-5:00pm PST Monday-Friday. If we are unavailable to take your call, or reply immediately to your email, please allow 24 business hours to get back with you on your request.

Email: [email protected]
Phone: (800) 413-6164