We do not cold call.

Before we contact you, you will have either received a letter from us about the study or will have already taken part in the study with an interviewer.

We identify ourselves

We will always identify ourselves as from ONS whenever we contact you, displaying our logo on all letters and leaflets.

In addition, our interviewers all have a unique identification number.

If you are unsure

Call us on our freephone enquiry line +44 (0) 800 298 5313 to:

  • Confirm you've been invited to one of our studies
  • To verify the identity of an interviewer
  • Check your letter is genuine