If you need to apply for a refund，please apply 24 hours prior to the start of the event。
How to apply：1，Landing www.huodongxing.com；2，Find the corresponding ticket in your participation；3，Click “refund”.
【Huodongxing】The fee of 10% of the original fare as the refund fee, please be aware of.
成都数学嘉年华
