Well you don’t understand the point that you don’t get an update button
Linux binaries were in beta mode. Which by meaning You can’t use hldsupdatetool to download a new update.
Now since garry has shipped garry with the linux binaries you should be able to update your server. Just contant them and they should be able to implement your server with an Update button.
I’m with ServerFFS at the moment, and all I needed to do was press the Hibernate button. This is not that complicated is it? If its bugged contact them (not yelling or angry/abusive messages) tell them its bugged and they should be able to manually put you on hibernate.
They might be a pain in the ass from their support. Just attempt to contact them (send them an email) asking about the ban and explain your side of the story and all should be well.