We were afraid of this... And it happened. We ran out of ESNcards! 
Until this problem is solved, the office will be closed. Do not worry though, should you have any questions or problems, we are available to you on Facebook, e-mail (info@ic-cuni.cz) or simply catch up with us at any of our events. Thank you for your understanding. We will let you know once the office hours will be on again!