Inquiries about products: info@platinum-mart.com 
Inquiries about buying/selling platinum: sales@platinum-mart.com Information about our company: webmaster@platinum-mart.com 
Customer Support: support@platinum-mart.com 

or
Mail: 
Platinum Mart, Inc. 
1840 San Miguel Dr. 
Suite 203 
Walnut Creek, CA 94596

or 
Tel. Number : 925.988.9883