3S Network interview questions

I was given an interview time. The email I received listed a different time. Then just before the interview I was called and given a third different time. I showed up on time and no one was there. Someone from the company literally just showed up in the parking lot to meet me, she didn't come from the company's listed address. The interviewer showed up a half an hour after my scheduled time, and answered two questions which made the job a waste of time. Questions that could have been answered with a phone review, which they did not want to do.