NC support didn't tell him someone was trying to claim his account first. They just banned the account and he thought the block ip had a problem of Exitlag vpn on Christmas. Then he got an email from NC supporter tell him to provide some information to prove that is his account without reason. He still didn't know that the account be claimed by someone. Two day ago, NC replied him that his account will be deleted because the account be disputed by another people. He was very shock after reading NC email. He tried to send some other tickets to prove like visa card, paypal... However, NC said that: " I don't care" and move all of ticket to Solved status. He didn't know someone who sent ticket to claim his account until now. NC said that: " this is a secret. we never tell you know that".