If the Zon.Tools coupon code isn't working, try the following steps:
- Double-check the code and ensure it is entered correctly.
- Verify the expiry date to make sure the code is still valid.
- Check the terms and conditions to ensure the items in the cart are eligible for the discount.
- Clear browser cookies and cache, then try applying the code again.
- Use a different browser or device to see if the issue persists.
- Contact customer support through live chat or the contact page for further assistance.