Greenpoint Computer Services interview questions

Turned up 10 mins early. Waited ten mins inside to be told. Go away and come back tomorrow. Came back the next day and got interviewed. Seems they keep advertising no matter how good you are. They tell you how interested they are and that they will contact you but then post a different job and amount. So either very very high turn over or fishing for interview for fun. No offer but they make you feel that you are the one.