Dear Organizers, I need a receipt for the registration fees sating that "Konstantin Sokoloov has paid in full the registration fees for the 9th International BioBrillouin Meeting, Berlin, November 25-27, 2025, in the amount of 400 Euro." Thank you! Konstantin. The information contained in this e-mail message may be privileged, confidential, and/or protected from disclosure. This e-mail message may contain protected health information (PHI); dissemination of PHI should comply with applicable federal and state laws. If you are not the intended recipient, or an authorized representative of the intended recipient, any further review, disclosure, use, dissemination, distribution, or copying of this message or any attachment (or the information contained therein) is strictly prohibited. If you think that you have received this e-mail message in error, please notify the sender by return e-mail and delete all references to it and its contents from your systems.