U.S. Financial Technology interview questions

Painstakingly slow process right from initial candidate prescreening. Received a response after repeated followups that I was scheduled for a phone screen. Took the HR to get back a little shy of 2 weeks after receiving my prescreening form. Was told that one person will phone screen me. Mid way into interview, I hear loud laughter to one of my responses. It was not a neighbor sitting close by that I heard. I am certain there was someone else unannounced in the room. Was humiliating to be laughed at. No professionalism or concern. The call ended alright besides that one embarrassing moment. Then a second round with the hiring manager and other team members scheduled for a date and then rescheduled due to conflicts. Total understandable. I did my best to answer what I could and for sure did not have answers for one or two. The interview lasted about 25 mins as opposed to a scheduled 1 hr plus. I knew it did not go as well as I expected. Asked what is the next step in the process. The hiring manager it was I believe that said we would like you to meet a candidate who has started a week ago, to see how you both would get along. Hearing this I am thinking maybe I have a chance. So asked when can I expect to hear from you all. I was told we will share notes and should get back next week with in 2 to 3 days. Waited for more than a week and half to receive a feedback. Upon repeated follow ups, I get a routine response "we are not moving forward at this point. They decided to move forward with another candidate". I asked for a feedback that would help me understand what were my shortcomings. Again repeated follow ups. And I am told they don't have the feedback to share. And also that the position is closed because they filled with a candidate who went through the final interviews and that my profile will be kept for consideration for other positions. Total waste of time, as a prospect I have the responsibility to follow up but as a company bringing in new people also share the responsibility of portraying some professionalism. I am not sure I am glad that I was not selected or have I lost an opportunity with a good company that probably has a few rotten apples in the basket. Irony is that I was not even told what salary range was being offered for this position. Understand that this is a financial company but so secretive about simple facts like salary is beyond my comprehension. In all it was not a good experience.