Cancel your Dux Soup subscription by mail
Dux Soup takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Dux Soup receives written requests in Mountain View, United States.
Let Postbye cancel Dux Soup 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 Dux Soup.
- 4.8 from 2,931 reviews
- 2 Dux Soup cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Dux Soup by mail
Note 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 Dux Soup holds, so the request can be matched to your account.
Prepare the letter
State plainly that you want the Dux Soup account cancelled, further charges stopped and a written confirmation sent to you. Postbye sets this out in a ready English template (“Subject: Subscription termination – Dux Soup”).
Post the letter
Post it by certified mail to Dux Soup in Mountain View, United States, using the exact address below, and note the tracking number.
Hold on to the receipt
The receipt dates your request. Look at your next statement for any Dux Soup charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Dux Soup cancellation letter goes
Written requests to Dux Soup go to 1600 Amphitheatre Pkwy, Mountain View, CA 94043.
ZIP code 94043 is in California, so the letter stays inside the United States postal system.
The letter greets the reader with “To Whom It May Concern,”; your own details sit under the labels Name, Address and E-mail.
Prefer to write it yourself? Use our letter template
Every address we hold for Dux Soup, with the envelope wording
Before you cancel Dux Soup, check these
- 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.
- Check your next statement: no charge should appear after the cancellation 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 Dux Soup 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
A subscription ends when the company records your request, not when you stop using it, and a letter is the record you can show later.
If a charge shows up after you cancelled, the letter and its receipt are what you put in front of the company or your bank.
Dux Soup cancellation at a glance
- How Dux Soup accepts cancellations
- By mailed letter
- Mailing address on file
- Dux Soup 1600 Amphitheatre Pkwy Mountain View, CA 94043
- Country
- United States
- Letter language
- English (template en)
- Added to the database
- April 30, 2026
- Data last checked
