If the Kappi.com.au coupon code isn't working, ensure the following:
- Check the expiration date of the coupon code.
 - Verify the code for any typos or errors.
 - Ensure the code is applicable to the items in the cart.
 - Log in to the account before applying the code.
 - Clear the browser cache and cookies.
 - Try a different browser or device.
 
For further assistance, contact Kappi.com.au customer support.