Pepperjam interview questions

I applied online and was contacted shortly after. The screening call seemed to go well. They said they would follow up, however a month went by until I had heard from them again after I had reached out to see if they were still interested. I was then led through a series of 4 interviews over the course of 2 months where it seemed like I was just being passed around and asked the same questions over and over. It felt like I was being led on. By the 6th "conversation", they decided not to proceed but would keep my resume in the pipeline. I just wish there was more transparency and value of my time.