Panasonic Battery Engineer interview questions

Just a basic telephone screening. Asked me about my background and willingness to relocate to Nevada. It took me 2 times to really get on hold with the HR. The first time the HR just simply forgot about the call. The second time, the HR was late for 2 hours and replied to me whether I can wait for another hour for the phone screening. Afterward, I was told that I passed the phone screening and will be talking to a Japanese engineer the following week. Never happened. Followed-up for a month via email and phone, no response. It's like the company never existed before. Very unprofessional and such a waste of time.