You can go to the labor bureau to apply for labor arbitration,

1. The internal regulations of the company have no legal effect.

There is nothing in the contract with you.

The company is also responsible for your mistakes in work. They didn't do a good job in training and supervision.

Therefore, it is unreasonable for them not to give you money. At most, they dismiss you because your working ability does not meet the requirements, and there is no reason to ask you for compensation.

If they are not satisfied with the arbitration result, or they do not arbitrate, they can appeal through legal procedures within 15 days after arbitration. You are sure to win this kind of lawsuit.