Sinch Project Manager interview questions

HR screener then Interview with Hiring Manager My issue with the HM interview was that he curve balled me and gave me a Case Study type of question, when HM mentioned this was another screener to talk about work history. Then after the case study, 10 minutes later he sends a rejection email. Can't help but to feel used for free consulting work and not be paid for my thoughts.

After the initial informal call with a recruiter, I was sent a task and asked to spend 3+ hours on creating a presentation that would then be reviewed by the hiring manager to decide if I was getting a first interview with them. I pointed out that this seemed exclusionary given the vague formulation of the task, while also asking a lot of candidates with little in return. The replies I received from the company were increasingly antagonistic and refusing to acknowledge my concerns or accommodate my request to go over the task during a call as the nature of the job is collaborative anyway. I declined to proceed because of this.