Dear valued users, Due to the breakdown of third-party operators, Huobi Futures’s system has been maintained for a long time. If you encounter any problem during this period, you can send us an email or submit an online request, and we will solve the problem as soon as we receive it. You can email support@huobigroup.com with the below email format (email subject: Huobi Futures problem feedback_UID number), we will reply you within 7-15 working days. UID： Recipient's email address： Problem description: Contract type: Coin-margined futures/Coin-margined swaps/USDT-margined swaps/Options Assets: eg. BTC/ETH Order screenshots/information:   Reminder: If you have emailed us once, please do not send the repeated question. Thank you for your support and understanding!   Huobi Futures Feb. 20, 2021