If a Lancome.com coupon code isn't working, try the following steps:
- Check the expiration date of the coupon code.
- Ensure the code is entered correctly, without any typos.
- Verify the terms and conditions of the coupon, such as minimum purchase requirements or specific product exclusions.
- Clear your browser cache and cookies to avoid any technical issues.
- Try using a different browser or device.
- Contact Lancome customer service for assistance.