How do I send my questionnaire to Effectory?

To send the questionnaire, use the envelope you received with the invitation. If, by mistake, you did not receive an envelope you can send the questionnaire to the below address. No postage stamp is needed.

Effectory B.V.
Postbus 20620
1001 NP Amsterdam

Was this article helpful?
0 out of 0 found this helpful

We're sorry to hear that!

Please tell us why.
Have more questions? Submit a request



Please sign in to leave a comment.