Deactivation of old account

Hello codechef team. I have two accounts on codechef. One is with the user name ‘euphoria’ registered with the email id Now, I recieved my email id from my college LNMIIT. So, I registered with my college email id i.e. (the one from which I am sending this mail) under the username ‘sahgal’. Can you please deactivate my old acoount on codechef, the one with username ‘euphoria’ and email id Please reply ASAP.

Thanks in advance.