Admin/Moderator decisions are final and arguing with them can result in suspension or banning of your account and purging of your content.
There are many moderators that I've seen given a position after simply offering themselves in a post. And we can't ask for a review of an action of a random person that has the title of moderator? Excuse me but if that is the case, this is feeling like quite a red flag to me.
Thanks for the reply and clarification. I still see as troublesome the wording in the part I mentioned. I can understand that you want to cut fast the issues with annoying users but from outside there can also be concerns about moderator abuse.