When my parents received the medical request, they received it in my cic account under the messages. There was no email sent to us. Once medicals were done, my cic account showed "Medicals have passed". So, my cic account is also official and should be considered official. Check the my cic message and review what does it say in medical request. There must be attachments there.+
Remember, if you wait for their reply via email there could be a possibility that the reply will be after 30 days and medicals are supposed to be done within 30 days as mentioned in the medical request letter.