US Postal Service CCA interview questions

the is interview was real easy, the interviewer just gave info about the positions. I did get offer the position still waiting on my start date. this really a long process. I file out the app on line in December I received an email for an interview 2 week later. one week letter I received a email to take my drug test, then one week later a received a email to offer me the job

Applied online in Dec, Took the 473 exam around Dec 15th. I got an 80 on the test. Went to interview on Jan 7th. It was a big group interview, Thank god i was one of the first 4 there. I showed up 20 minutes early. There were over 40 people there. First in- FIrst out. The interviewer was super nice, and told me i was being recommended. I have been waiting ever since. Its been 7 weeks since that interview, and i'm still on the hiring list. I don't know what the deal is.