Along with appealing every 28 days, if you want to get in contact with staff your best option is joining the SpawnPK Discord and using the #help section. There is also a ticket channel which allows you to post a link to your forums appeal and talk with staff about it.
Unfortunately you probably won't be unbanned for a while, RWT is taken very seriously on the server.
1: Real World Trading (RWT)
Offering to Buy or Sell SpawnPK GP/Items/Services for anything else other then SpawnPK Ingame Wealth is a serious offense. (Trolling about RWT is also an offense).
Services such as GFX / Editing related to SpawnPK do not fall under this category, you are allowed to do so.
In any case, best of luck on your appeals.