Im sure that staff have full control of this, and already sorted this out, this is actually a little bit respectless. This is a problem that staff can solve themself, there’s no reason to post it at the forum! If you in any way suspect that the staff missed something while creating this server (and modifying it in several years) you should contact them by doing private message over forum, or /mail ingame.

Here is a link to the Minecraft EULA – https://mojang.com/2014/06/lets-talk-server-monetisation-the-follow-up-qa/