Applied for topbonus account then emailed statusmatch@topbonus.de with my topbonus number and a jpg of my SkyMiles ecard. Received this reply: thank you for your e-mail. Customers with residence in the US must prove a booking confirmation incl. booking number of an airberlin long haul flight between US and Europe (return ticket). This flight must be operated by airberlin and take place in 2016.