If a CMSNL.com coupon code isn't working, consider the following steps:
- Check the expiration date: Ensure the code hasn't expired.
- Minimum order value: Verify if there's a minimum purchase requirement.
- Correct code entry: Double-check for any typos or errors when entering the code.
- Specific product exclusions: Some codes may not apply to certain items.
- One-time use: Confirm if the code has already been used.
- Contact customer support: Reach out to CMSNL's support team for assistance.