I got 3 master nodes and I need to withdraw the funds urgently, these are hosted by a third party and it is night time where they are. I spent some time looking how to do this, only one mention on dashtalk from 2014 says 'masternode stop' which I tried and does nothing. Very surprised the funds are locked, when originally setting it up I was told to be careful not to withdraw more than the master node account otherwise it will no longer work. Now I find it is locked, when I try to withdraw it says insufficient funds.

How do I unlock it or stop the nodes remotely??