PIKA International interview questions

I applied Fall 2019 where I proceeded with two phone interviews. They were fairly initial interviews. In my first in person interview, I was shown around the office and met majority of the team. Over a two hour period, I interviewed with three employees. Questions were of average difficulty and they were very nice. My second in person interview was with the President of the company. The interview with him was much more difficult. At the end of the interview, he said they would be extending an offer. I waited a week before contacting them. After numerous calls and phone calls, no response was given and I moved on. I was contacted October 2021 asking if I was still interested in working for them without any explanation of the prior situation. I told them that I was not interested. The whole process was very frustrating and seemed unprofessional.