Cancel your Unnsubby subscription by mail
Unnsubby accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. The cancellation address on file for Unnsubby is in Wilmington, United States.
Let Postbye cancel Unnsubby 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 Unnsubby.
- 4.8 from 2,931 reviews
- 3 Unnsubby cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Unnsubby by mail
Find your account details
You will need the name and email on the account and, if you have one, an account or customer number. Use exactly the details Unnsubby holds, so the request can be matched to your account.
Put the request in writing
Postbye turns the request into a finished English letter headed “Subject: Subscription termination – Unnsubby”: close the Unnsubby account, stop every charge and reply in writing.
Send the letter by certified mail
Post it by certified mail to Unnsubby in Wilmington, United States, using the exact address below, and note the tracking number.
Save the tracking record
The receipt dates your request. Look at your next statement for any Unnsubby charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Unnsubby cancellation letter goes
The mailing address we hold for Unnsubby is 3511 Silverside Rd, Ste 105, Wilmington, DE 19810.
Wilmington is in Delaware (ZIP 19810), a domestic address for certified mail within the United States.
Your details go in a block headed by Name, Address and E-mail, and the opening line is “To Whom It May Concern,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Unnsubby, with the envelope wording
Before you cancel Unnsubby, check these
- If an app store or phone carrier bills you, the company cannot cancel it. Cancel with that partner as well.
- Cancelling usually ends access at the end of the period you paid for, so you keep what you paid for until then.
- Use the same name and email as on the account. A mismatch can delay the request.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Unnsubby 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.
How cancelling by mail works
Most subscriptions keep billing until someone tells the company to stop, and a dated letter is proof that somebody did.
Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.
Unnsubby cancellation at a glance
- How Unnsubby accepts cancellations
- By mailed letter
- Mailing address on file
- Unnsubby 3511 Silverside Rd Ste 105 Wilmington, DE 19810
- Country
- United States
- Letter language
- English (template en)
- Added to the database
- May 14, 2026
- Data last checked
