@ Charu
I have checked our records and have verified that your Windows Live Hotmail account is currently associated with "MSN Mobile SMS Communications 1" subscription.
If you are being billed on your credit card, I suggest that you contact our billing team at (866) 672-4551 and let them know that you would like to have your subscription cancelled. Please inform them that you need this subscription removed so that you can close your Windows Live ID. This team will then be able to investigate how you were signed up for a mobile service just in case you did not request for this service.
However, if this service is not included in your credit card bill, please contact your mobile phone carrier for more information on how you can cancel the subscription. The mobile subscription that is reflected in our system could have been set-up by your mobile or wireless carrier.
Once your subscription has been cancelled, you can now close your account by following these steps:
1. Visit http://account.live.com
2. Sign in by using your Windows Live ID and password.
3. Click "Settings."
4. In the right pane, click "Close your account." You will receive the following message: "Are you sure you want to close <your account>"
5. Enter your password in the Password box.
6. Click Yes. You will then receive: "Cannot close <your account>, as there is a Microsoft email account associated with your account."
7. Click "Close your Microsoft account."
8. Click "Close my account." You will receive the following message: "Your account has been closed and scheduled for deletion."
Note: I've moved your post to the proper forum.