GCB Services interview questions

I had an interview at 8AM on a Tuesday where I would be doing it over the phone. No one from the company called me. I call back, and they have no idea of who I am and that I had an interview. The guy that answers the phone said I got the job and will email me the paperwork.

1 technical round HR confirmed that i am applying for a day shift job but after interview they told that it will be a night shift job. Waste time and money .