Cancel your Total Defense subscription by mail
Total Defense deals with cancellations through the post, so the request goes in a letter and the certified-mail receipt is your proof of when. The cancellation address on file for Total Defense is in Hauppauge, United States.
Let Postbye cancel Total Defense for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
Money-back guarantee within 10 business days.
Postbye is not affiliated with Total Defense.
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- 2 Total Defense cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Total Defense by mail
Gather your account details
You will need the account or subscription number, the email the plan was bought with and the address or devices it covers. Use exactly the details Total Defense holds, so the request can be matched to your account.
Set out the request
The letter asks Total Defense to end the account, stop every future charge and confirm it in writing, under the subject line “Subject: Subscription termination – Total Defense”. Postbye fills it in from our English template.
Mail it with tracking
Mail the letter by certified mail to the Hauppauge address in the next section, and keep the tracking number.
File the delivery record
Keep the tracking record with your copy of the letter. If Total Defense bills you after the date it received the request, you have the dates to point to.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Total Defense cancellation letter goes
Written requests to Total Defense go to 1393 Veterans Hwy, Suite 310N, Hauppauge, NY 11788.
Hauppauge is in New York (ZIP 11788), a domestic address for certified mail within the United States.
Inside, the salutation reads “To Whom It May Concern,”, followed by your details under Name, Address and E-mail.
Prefer to write it yourself? Use our letter template
Every address we hold for Total Defense, with the envelope wording
Before you cancel Total Defense, check these
- Keep copies of anything you return, such as a control panel or camera, and send it with tracking.
- Monitored plans can run on a fixed term. Check your agreement for the end date and any early-termination fee.
- Software plans may auto-renew a few days before the term ends. Send the request ahead of the renewal date.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Total Defense for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
Cancelling a security or identity-protection subscription
Security subscriptions often auto-renew and monitored plans can sit on a fixed contract term, so it matters when the request reaches the provider and whether it covers every device or location.
A letter is the formal route: it states the request in writing, carries a date and, sent by certified mail, comes with proof of delivery.
Total Defense cancellation at a glance
- How Total Defense accepts cancellations
- By mailed letter
- Mailing address on file
- Total Defense 1393 Veterans Hwy Suite 310N Hauppauge, NY 11788
- Country
- United States
- Letter language
- English (template en)
- Category (from the company name)
- Security & identity
- Added to the database
- July 17, 2026
- Data last checked
