Flex Data Analytics Manager interview questions

Worst experience. There were three rounds of discussion and i cleared all the three rounds post which when they asked about salary i asked for 20%hike for which they were not interested and asked to join for same package which I am currently getting. The salary criteria should have been discussed before without wasting candidates time. I wasted three hours of time on three consecutive days. Please don't even join this company even if one gets offer. Worst to the core.