Trending @Accenture; Work on Weekends and 12 hr a day!

I got into this project last month, and they are asking me to work on weekends also.. no comp off on weekdays! Also asking to work for 12 hrs daily what shit is this Not provided kt, they talk rudely. There is groupism according to location and language... How do I reject these things... There was no conversation for hard locking... I received hard lock mail randomly one day

What kind of shitty culture is this