Not sure what goes on behind close doors or if the...

Not sure what goes on behind close doors or if they even have an HR department but unprofessional. I applied for a position and received an email saying my application was selected. I never heard back and each time I called I got the same answer that someone will be contacting me shortly . No one reached out and I keep getting the same email saying my app was selected. No one has given me a straight answer. Very disappointing.