When you place the cash inside it turns into a Guild Coin
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The Garden with the entering portal. From the Garden where you can locate the portal there is a greeter. He's your slave like servants in RuneScape gold your POH. However, you have to purchase one from Ardougne too. Even if you've got a servant on your POH. In the guild you can't utilize the servants to your POH. You may just buy exclusive guild servants.
The same as POH servants, POG servants will request you wages after an amount of time so if you paid 5,000gp for him then you will need to pay the identical amount of money after some time. That means you won't only pay their price for one time. More expensive servant takes will spend additional time without asking for the wages.
Your clan members may contribute in those chests. The best part is you could use them for your guilds needs. For instance, you need to pay your servant his salary, but do not have enough cash. You assess the contribution chest and when there is enough money you pay the servant.
When you place the cash inside it turns into a Guild Coin. One Guild Coin is the same as one ordinary Gold Piece. You may only use the money for the guilds needs. That's why when you donate you can be sure that the owner will not invest the money on something else such as buy OSRS gold food, armor or anything he could use for themself. All your donated money will be unable to help the guild.