
You can contact the Commissioner to complain about:
- The lack of opportunities to use the Welsh language
- Difficulties using the Welsh language at work
- If you are not satisfied about how an organisation is treating or considering the Welsh language.

What information should we need?
When making a complaint, please provide as much detail as possible, including:
- What happened and when;
- Who was the responsible organisation;
- How you (or the person you are complaining on behalf) have been affected;
- Any other relevant evidence or information, and;
- Your contact details, and, if relevant, the contact details of the person you are complaining on behalf.

Let us know if you have already complained to the organisation. This will help the Commissioner know if she can consider your complaint.
If you are contacting on behalf of another person, you should explain why you are doing so. We will need confirmation that the other person gives you permission to complain on their behalf.