So, thought about going through a temp agency for...

So, thought about going through a temp agency for this position, found out someone I knew worked there and they said to apply directly and use them as a reference. So i did. Got an email from Susan there saying to set up a time to come in and fill out a formal application and to discuss the role with her. I emailed back immediately, waited till the next day with no reply, called and got a voicemail. Left a voicemail. No one got back with me. So I called the cell number SHE PROVIDED and said she'd get back with me when she got back to her desk. Waited all day and she never did. So I called the office again and they told me that they would call if they wanted to do an interview.
So I'm a little confused st this point, but I was like ok whatever they must just be busy. Nope. They acted like a little 2yr old and went and told the temp agency I had debated going through and told them to tell me to stop calling! If I head decided to not go through a temp agency and just apply directly, how does that give them a right to ignore me and then tell the temp agency (that I'm not even working through) to have me to stop calling??!!
I found this whole experience very unprofessional for both the agency and Alltrista Plastics. I would not recommend anyone to work here cuz if this is how they treat someone who was just trying to see about getting hired on, lord knows how they treat their actual employees.