The suspension, not a ban, had nothing to do with your chat. Asking for gold in public channels isn’t against policy, though it generally isn’t well received by most folks.
To be clear, there is no mass report = ban system, you were reported, certainly, but that generated a review of your name, which was found to be inappropriate.
You are welcome to appeal by submitting an appeal ticket, though I would recommend selecting a new name upon next log in.