1. invite the lower level to mine, and 5% of the lower level's mining calculation power will be rewarded to the higher level; if the lower level stops mining, the calculation power reward will be withdrawn.
2. cancel using FM or usdt to purchase virtual machine.
3. usdt mortgage, improve computing power configuration. Select calculation power, mortgage period , mortgage usdt quantity, and free energy. After the end of the cycle, the usdt will be returned to the mortgagor.