Cleared the first two rounds of technical , third...

Cleared the first two rounds of technical , third round was also supposed to be technical and HR. There were no technical questions (No complaints about it). Then came the salary question, I was straight forward in quoting the numbers I expected , since I had 3 yrs of core mobile testing experience . Then comes the question from the interviewer , are you working in product company . I told yes. I thought things were good. Later I call back , for unknown reasons they have rejected me . Feels like they have a huge hatred towards product based or bigger companies , when u look at things as an outsider.