Brinks Home Customer Service Representative interview questions

I got called For a phone interview. After the phone interview I got scheduled for a in person interview. After the first interview, they told me to come back for another in person Interview with the hiring manager. That same day of the second interview, I got a called saying I got the job. I went back to sign some papers. They said they were going to get back with me through an email to sign the last paper as soon as they got my background check(which I know I have a clean background). It was suppose to take maybe 3 days. It's been 1 week almost 2 and I haven't gotten an email. I called and left a voicemail, which they haven't gotten back with me. I emailed them, and I still haven't heard from them. I had put my 2 weeks at my job since I had gotten this job, now I'm unemployed, thank you Moni. Could've been nice if you told me what made you change your mind.