Log in to Portal Site of Official Statistics Online Survey, and open List of questionnaire screen, if the date of sending the questionnaire has been displayed in "Answer date" field, the questionnaire answers have been accepted correctly.
In addition, if you have registered email address in the statistical survey, "Acceptance status of questionnaire answers" email will be sent to you, please confirm the content.
If neither of them can be confirmed, the questionnaire has not been sent correctly. Please try to send it again.