Please wait a few days and message him/her again. It is possible that your partner does not have regular access to the internet or that your e-mail ended up in his/her spam folder. If you still do not receive an answer, please contact us at tandem@sprachenzentrum.fu-berlin.de. Please include your name, your partner’s name and your language combination in your e-mail. We will match you with someone else as soon as possible.