If you have been happy with your seller’s performance, you can send the shop a tip by clicking the send a tip button. The list of sellers you can tip will only consist of sellers that you have previously made a purchase from.
When you select “Send Tip” you will be presented with a list of fixed amounts. The higher the tip, the higher the corresponding Pigee points they will receive. There is also a custom amount window if you really want to spoil the seller.
If you are being asked by sellers to send money and you do not think they should be doing so please report the user and begin a support ticket.