It's hard, but you have to be a salesman. You have to know that people like in every sale! I gave my number, so people call me and explain to them. It is easier to believe when you talk to them than through the messages. Or buy a product and send them a picture to see how you have that product. A conversation can convince people, but you have to be persistent and you must not give up. Persistence is finally worth. Good luck ....