We would like to inform you that the deposit, withdrawal, and trading system of Cortex (CTXC) is undergoing system maintenance due to an unexpected issue. We are working on it with the highest priority and will inform you immediately once we are back in service. 

Schedule
Issue    CTXC Deposit, Withdrawal, and Trading System Temporarily Out of Service
Date     8 January 2021
From    02:00 PM (GMT+7)
To         Until further notice

We apologize for any inconvenience caused.