It doesn't work to call 12345 for unpaid wages at the construction site, and it will be transferred to the labor inspection or told to complain to the labor inspection. 12345 generally refers to 12345 government service convenience hotline, 12333 is the national unified hotline of the Human Resources and Social Security Bureau, and workers can call 12333.
Legal objectivity:
Article 14 of the Regulations on Labor Security Supervision shall carry out daily inspections, examine written materials submitted by employers as required, and accept reports and complaints. The administrative department of labor security believes that the employing unit has violated the laws, regulations or rules of labor security and needs to be investigated and dealt with, and shall promptly file a case. The administrative department of labor security or the organization entrusted to carry out labor security supervision shall set up a mailbox and telephone for reporting and complaining. The administrative department of labor security shall, according to the emergency plan, promptly deal with mass incidents caused by violation of labor security laws, regulations or rules.