They can take some time to respond, sometimes a week. It’s all volunteer based and they make sure all admins get input on appeals. Try and have patience
Pretty sure ban appeals can only be done here for Wizden Official servers not steam discussions or any other server that isn't Wizden.
Here's the Template:
Post your appeal here:
https://forum.spacestation14.io/index.php?/forum/4-ban-appeals/