Unable to withdraw

In January, the manager told me that if I don't participate in the event, I can apply for a withdrawal on February 4th, but today I applied for a withdrawal. Not only did they not give it, but also forced me to participate in the event. This is a very unreasonable behavior. Why must I participate to withdraw? This is my money. In theory, it is my freedom to withdraw anytime I want. This company restricts us and does not allow us to withdraw money.