public static void ExpandInventory(GameSession session, InventoryTab tab)
{
Inventory inventory = session.Player.Inventory;
long meretPrice = 390;
short expansionAmount = 6;
if (session.Player.Account.RemoveMerets(meretPrice))
{
inventory.ExtraSize[tab] += expansionAmount;
session.Send(ItemInventoryPacket.LoadTab(tab, inventory.ExtraSize[tab]));
session.Send(ItemInventoryPacket.Expand());
}
}