1. Duplicate the Jon Don's discount code you desire from this page and click to get code.
2. You'll observe the offer code being displayed and automatically copied to your clipboard after a single click.
3. Following this, you'll be required to go back to the checkout page of jondon.com, spot the promotional code box, and input the code you copied earlier.
4. As a final step, you need to press 'Apply Code' to view the size of the discount on your current order.