If the kollohealth.com coupon code isn't working, try these steps:
- Check the expiration date of the coupon code.
- Ensure the code is entered correctly, without any typos.
- Review the terms and conditions to confirm the code applies to the items in the cart.
- Clear browser cookies and cache or try using a different browser.
- Disable browser extensions that might interfere with the checkout process.
- Contact customer service for assistance with the coupon code.
These steps can help resolve common issues with coupon codes.