Cenveo Copy Editor interview questions

I got a call from a third-party HR (iworks) to attempt a test for the copy editor position. I got the test from cenveo. They asked me to give the test over the weekend. I spent my Sunday giving the test. After that, they didn't even bother to give the feedback. I mailed them back asking the feedback but no reply. I had to call the third party HR, she told that they didn't shortlist you. This was very unprofessional of Cenveo on not even bothering to reply if a candidate isn't getting selected after I wasting my Sunday to give the test. We are looking for a job out there and these folks on the terms of being "busy" keep us holding on to an expectation. I am not going to apply for Cenveo ever with such unprofessional HRs working out there and I also won't recommend it to my friends.