"You will need to enter your Enrolment Number and PIN to begin. Your Enrolment Number and PIN will be sent to you in separate emails approximately 24 hours apart. Both the Enrolment Number and PIN are required for you to complete the registration for the OINP eFiling system."keke9010 said:Thank you for your response. but that is for One key Id. it seems not the "Enrollment Number" as required. Do you have more clue please?