Is Shenzhen Xindong Labor Dispatch Co., Ltd. a liar? Someone introduced me to this and asked me to do a summer job. Please give me your opinion.

Shenzhen Xindong Labor Dispatch Co., Ltd. is a deceptive company. Last year, I went to a factory in their company as a temporary worker with a dozen friends, and I didn't get paid for more than a month. We worked overtime for nothing, and we have no money. We asked the boss for it. The boss called Zhang Xiaoshuai and called a group of people to beat us. We called the police and only a few security guards came. He said we could report to the labor bureau. We also called the labor bureau and waited for several days, but no one came to handle it. Two people were beaten to vomiting blood, and they had no money to go to the hospital, so they had to pawn their mobile phones. We don't know if there is a king's law in this world. Is it? None of our lives are guaranteed.