Frequently asked questions Here we set out some answers to frequently asked questions from our advice line callers. If you can't find the answer here, please call our advice line on 020 3117 2520 or send us an email What kind of concerns can I raise? Who is protected? How do I raise my concern with my employer? How do I raise my concern to a regulator or "Prescribed Person"? How do I raise my concern to the press or more widely? What is the difference between grievance and whistleblowing?