System says my survey is already submitted
If you received a personalized survey invitation - either a physical paper invitation or by email - the survey link is personalized to you, and may only be used once. It is important that you do not share this link with anyone else, as they will be completing your survey on your behalf.
If you have shared your link with someone else and they complete a survey using that link, we cannot issue you another link.

If you shared your link with someone else and wish to complete the survey, please speak with your company's program administrator.