AT&T Business Sales Development Leadership Program interview questions

I filled out an application online and about 3 weeks later, I recieved an e-mail from the staffing agency (Carl Morrison) saying that AT&T wanted to interview me. I participated in a infosession before the interview to prepare. I had my interview with Carl and I know I killed it! He told me that a recruiter from AT&T should contact me in two weeks (which they NEVER did). In two weeks, i contacted Carl and he was on vacation. he never responded back, finally i talked to another staffing agent and she said that my info was passed on and i should be contacted by a recruiter, two days later i get a e-mail saying i am no longer considered. I was upset because i was lied to. I say do not go through the staffing agency because they lie to you. I was told if you do not know somebody, you will not be hired, its a shame i got lied to so early on, I am thinking of contacting HR.