Hello Nethric,
For this issue you can go here: https://funcom.zendesk.com/hc/en-us/requests/new
Fill out the form and make sure the request type is set to Ban Information and Appeals (Why was I banned)
You’ll also need to add your steam id (a 17 digit string) in the Description of the issue that you are reporting text box.
You’ll get a response in 48h, which means next week as they don’t seem to work during the weekend.
Ban information requests should take less time to get a response since it’s all about relaying information back to the user.
Also, make sure to read the rules again:
Best regards.