Hidromek interview questions

I applied for the position on a career site. Then I received a phone call that they would like to make an online interview one day later. I told them that I was working at that time and had meetings in the given date so I would be glad if we could have the interview the day after. They accepted it but then there was no return for one month. Later on we made an interview, they told me that the interview was good and there will be one more. However there was no return. Four months later I received an email saying that the result was negative.