If the Tervis.com coupon code isn't working, consider these steps:
- Check the expiration date to ensure the coupon is still valid.
- Verify the coupon code for any typos or errors.
- Review the terms and conditions to confirm the coupon applies to the items in the cart.
- Ensure the coupon is valid for online or in-store purchases as specified.
- Contact Tervis customer support for assistance if the issue persists.