IMPORT not working and every tech support agent is incompetent

Hello @ESP, 

Thank you for being a part of our community and for reaching out to us. We are sorry to hear that your experience with support was less than satisfactory. I have reached out internally to make sure that a tenured member of our team reaches out to you as promptly as possible to continue working with you. 

-Erin: Your Friendly Neighborhood ShipStation Community Manager 

We are having same problem and not getting anywhere despite escalation, did your problem get fixed? I am seriously looking at other shipping solutions...