As a security precaution, it is possible to lock your current payout address, so it cannot be changed by anyone who gains access to your pool account. However, once you lock your payout address, please be sure that you have a backup of it stored somewhere safe. You will need it once you decide to unlock it.
To unlock your payout address you will need to sign a message with your wallet and provide us the signature. If you have any troubles with unlocking your payout address, please contact us and we'll look into it.