My advice is to try to talk to him, explain that you are new here and ask for a chance.

Explain your reasons that it is your first time and you don't know the #newsteem rules!!!

Also, you can go and participate in Discord, maybe he changes his mind and helps you.

Wishing you the best.

You are welcome, we are here to help each other and have a successful journey here in @steemit. :)