IoPay Unstake

Would like to know if it possible to us to unstake without waiting for staking days to finish? I have tried it but unstaking is disabled. Also why it is not allow to change staking days lower from the lapsed staking days? I need to know as I just put 1000 days without knowing it cannot be change to much lower…:persevere: Please allow us to unstake or lower the staking durations…