eClinicalWorks Software Training Specialist interview questions

2 Phone interview - 15 minutes with the HR and 30 minutes with the team lead 2 in-person interviews - 30 minutes by another team lead and 10 minutes with the COO

I applied for position online and was also referred by current employee. HR emailed to for interview at their Chicago office. There were about 7 people for interview. Hiring manager called me in first and informed me that they can't take my interview because my present employer is company's customers. I thought that was very unprofessional. They should have known that before calling me in for interview. When I applied via website there were know question about if had work with company's software before.