Guides' and guests' email addresses will never be published. The email address is only used when guides and guests log in. It will never be published to the outside or made public. In case there are elements that TOMODACHI GUIDE can not confirm at the time of ID confirmation, Customer Support may contact you using your email address because of your ID confirmation and such.
About the telephone number, if guests have not reserved a trip, the phone number will not be published. However, after booking the trip, guides' and guests' phone numbers are displayed on both the guide side " Your Bookings " and on the guest side "Your Trips". This is for an emergency situation to contact each other on the day of the trip. It is not used in any other way.