If it is less than 3 years, it is a fine to deduct nearly 2000 yuan from your salary, but the fine shall not be higher than the remaining expenses of the unit that trained you.

Moreover, there is a very important problem. The unit didn't give you a raise as agreed. This is a unit breach of contract. Since the company has breached the contract, you don't need to abide by the three-year contract, and the company is not qualified to deduct your salary. Put this agreement away. This is important evidence.

According to Article 22 of People's Republic of China (PRC) Labor Contract Law,

If the employing unit provides special training expenses and conducts professional technical training for the workers, it may conclude an agreement with the workers to stipulate the service period.

If the laborer violates the service period agreement, he shall pay liquidated damages to the employer in accordance with the agreement. The amount of liquidated damages shall not exceed the training expenses provided by the employer. The liquidated damages that the employer requires the laborer to pay shall not exceed the training expenses that should be shared for the unfinished part of the service period.

If the employer and the employee agree on the service period, it will not affect the employee's improvement of labor remuneration in accordance with the normal wage adjustment mechanism during the service period.

Extended data:

Article 23? The employer and the employee may agree in the labor contract to keep the employer's business secrets and confidential matters related to intellectual property rights.

For the workers who have the obligation of confidentiality, the employer may stipulate the non-competition clause with the workers in the labor contract or confidentiality agreement, and stipulate that after the labor contract is dissolved or terminated, the economic compensation will be paid to the workers on a monthly basis during the non-competition period. If the laborer violates the non-competition agreement, he shall pay liquidated damages to the employer in accordance with the agreement.

Article 24? The personnel with non-competition restrictions are limited to the senior managers, senior technicians and other personnel with confidentiality obligations of the employing unit. The scope, area and time limit of non-competition shall be agreed by the employer and the employee, and the agreement on non-competition shall not violate the provisions of laws and regulations.

After the dissolution or termination of the labor contract, if the personnel specified in the preceding paragraph go to other employers that have a competitive relationship with their own units to produce or operate similar products or engage in similar businesses, or start their own businesses to produce or operate similar products or engage in similar businesses, the non-competition period shall not exceed two years.

Article 25? Except for Article 22 of this Law? What about article 23? Except under specified circumstances, the employer shall not agree with the employee that the employee shall bear the liquidated damages.

References:

People's Republic of China (PRC) Labor Contract Law-Baidu Encyclopedia