To contact a buyer about an existing order, click on the "Contact Buyer" button to the right of the order in question from the  Members Area > Buying section:


HipStamp: https://www.hipstamp.com/members/selling/sales
HipComic: https://www.hipcomic.com/members/selling/sales
HipPostcard: https://www.hippostcard.com/members/selling/sales



Once the buyer responds, we'll notify you via email that you have a new message, which you can view from the Members Area > Messages section:


HipStamp: https://www.hipstamp.com/members/messaging/browse/filter/received
HipComic: https://www.hipcomic.com/members/messaging/browse/filter/received
HipPostcard: https://www.hippostcard.com/messaging/browse/filter/received