To contact a seller, visit the Seller’s store page and click the 
button below the store banner.
A message window will appear:
Enter in a topic on the subject line. Be sure to include your Order number (if applicable).
Notification
When a customer creates a new support ticket, the seller is notified via email and receives a notification in the seller dashboard. Similarly, when a seller replies to a ticket, the customer is notified via email and receives notification in the My Account dashboard.