You can change the phone number and e-mail address specified when purchasing a ticket in the "Manage booking" section on the website or in the Air Astana app. To access it, enter the passenger's last name (in Latin letters) and Booking number (6-digit alphanumeric code). The Booking number is listed on the e-ticket/route receipt you received after purchasing your ticket to your e-mail address.
In the "Manage Bookings" section, click on the "Manage Bookings" tab and select "Update contact information" from the drop-down list. On the open page, enter the required data in the appropriate fields and click "Next". Make sure that the newly opened page displays updated data.