By having a private platform that does not depend on 3G & 4G messaging, chats between the User and the Merchant can be as extensive, long and elaborate as needed. This can also include Text and Graphic Promos.
Merchants can exchange images with the client easily, share promotional visuals to all or a certain group of Users as well as go a step further by extending services like locating the right model and make a User is interested in purchasing. This may seem like a little more work but it certainly creates a fan for life as well as a definite good word out to other Users.