Dear organizers of CSI 2017:

      I emailed about the refunding of CSI 2017 on 13th March, but haven't got any reply.I am wondering whether you could tell me how to refund, or whom I should turn to. Since the refund deadline is coming up, I am very much looking forward to your answer as soon as possible. Just in case if you need this info, my registration No. is 5631, and email is

With the warmest regards, 

Chen Geng