well, truthfully, this matter, along with screenshots should be taken to support at
kingdomsupport@haypi.com. and it is there, that his/her name should be brought up.
legally, they cant give out disciplinary actions to anyone for rules that they do not show. they must publicly display rules for players to follow, in order to give disciplinary actions fro breaking rules. HOWEVER, there are a few things that you should not have done, that are minor, however, could be used in the experts defense:
1) you know that he would mute you for asking for nominations, yet you continued and got muted.
2) he warned you, and it was at that point that you should have stopped asking for nominations, and reported him to support. by not listening to him, or confirming the hidden rule before continuing, you were muted and because of that, the expert did create abuse.
3) you should have taken any ss of this directly to support, and kept the name confidential to everyone except support. even by using private messaging in game, or on the forums.
4) if an expert tells you not to do something, you should immediately follow their wishes, until such time that you can confirm or deny that what they asked of you was in fact appropriate, and within the rules.
in the future, it will help your case if you try to go immediately to support, with any information and screen shots you have.
i truly believe you are in the right in this situation, however, i think this matter needs to be urgently brought to support, for them to investigate. also, until you confirm it with support that it is a mutable offense, dont do it. you will only get muted more if you do, which will dramatically hurt your chances for expert.