Does this practice of the company conform to the provisions of the labor law?

Regarding the subsidized wages, the subsidized wages protected by the Labor Contract Law (legal protection) or the subsidies due by the company's red-headed documents (other employees enjoy them, but you don't) are all protective.

The temporary increase or decrease of other subsidies is within the normal range, and this is an oral agreement without any guarantee. Moreover, the behavior of enterprises to cancel business and reduce subsidies is personally considered to be market behavior.

If you want to apply for labor arbitration, you may not get support.

About asking questions:

Most of them are still handled the same. There is no basis for oral agreement.

However, if you need to apply for blanking, please keep the salary slips that have been subsidized in recent months as the basis, such as meeting minutes, notice documents of supplementary subsidies sent by the manager to the personnel department, or audio recordings of oral agreements.

This will help to deal with your situation. If none of the above is true, it is really slim. Witnesses are basically useless.

The above views are personal and are for reference only.