Tenta esse: 
  
premiumtile.lua 
  
 
function onStepIn(cid, item, position, fromPosition)
       if isPremium(cid) == FALSE then
               doTeleportThing(cid, fromPosition, false)
               doSendMagicEffect(position, CONST_ME_MAGIC_BLUE)
               doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_BLUE, "Somente players premium podem passar.")
       end
       return TRUE
end
 
  
Tag : 
  
 
<movevent type="StepIn" actionid="14965" event="script" value="premiumtile.lua"/>
 
  
Basta apenas colocar a action 14965 no tile que só os premium account podem passar.