If your workplace has a union, call your union. If your workplace is not unionized, call the government program for labour (sometimes called employment standards, or labour program). First, you will need to know if you are covered by federal or territorial law.
Which law covers you, Federal or Territorial?
If you do not work for a federally-regulated industry (shown above), then you are covered by territorial laws (phone Government of the NWT, or Government of Nunavut).
Who can I call if I work for Government?