Customers residing in the United States must demonstrate a booking confirmation incl. Booking Number of airberlin long-haul flight between US and Europe (there and back). This flight has to be operated by airberlin and carried out in the year 2016. Please send us this booking confirmation by e-mail.
The right to make alterations is reserved to topbonus Ltd., and may be carried out and/or be withdrawn at any time without giving prior notice.
Then we will check the status match again. We ask for your understanding.
on February 15, 2016