Hi Luis, No worries. The address is soc25@biobrillouin.org (the one permutation you didn’t try 😊). I put in cc. @Anastasia: could we issue receipt for Luis (regular reg. c.c. payment – see below /end of email) Best, Kareem From: Luis Alonso Baez <luis.a.baez@ntnu.no> Date: Tuesday, 2. December 2025 at 11:37 To: Kareem Elsayad <kareem.elsayad@meduniwien.ac.at> Subject: [EXTERN] Conference receipt Hi Kareem, Sorry to bother you in this address. I tried emailing soc@biobrillouin.org and soc25@biobrillouin.com but don't seem to work. I would require a receipt of attendance to the BioBrillouin conference. My name and the amount of the transaction is enough. Thanks, Luis Alonso Baez INNENAUFTRAG: KO61100002 AMOUNT: 400 SALUTATION: Mr FIRSTNAME: Luis SURNAME: Alonso Baez EMAIL: luis.a.baez@ntnu.no AFFILIATION: Norwegian University of Science and Technology STREET: ZIP: CITY: Trondheim COUNTRY: Norway IPARTICIPATEAS: Regular PARTICIPATION: Regular: €400,-€ (pay via Credit Card) EMAILMACRO: -regular-