I think you have to wait till they verfiy your account and your linkedin profile. cuz they want to work with real people. so you have to wait. just link your linkedin account and build up your account and then you can set up your price to answer questions if you are expert in soemthing or you can choose just One USD per message. I almost daily recive paid messages with one USD and do this micortaask within a mintue and if you build up ur refral commisions you will earn more. Good luck man. looking frward to see more from you.