If you’d like to purchase something that is slightly more than your store credit balance it’s very easy to top-up your balance. Simply visit the customer kiosk in the mainstore and pay the sign labelled Store Credit the balance.
For example you want to purchase a chair that is 450l, but you only have 400l in store credit. Pay the Store Credit sign 50l and you will then have 450l in store credit enabling you to purchase the chair completely with store credit.
The Store Credit sign can be found here.