Cancel your Deal Dunk subscription by mail
For Deal Dunk the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. The cancellation address on file for Deal Dunk is in Sheridan, United States.
Let Postbye cancel Deal Dunk 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 Deal Dunk.
- 4.8 from 2,931 reviews
- 3 Deal Dunk cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Deal Dunk by mail
Note your account details
Put the name and email on the account and, if you have one, an account or customer number in front of you before you write: the request to Deal Dunk is only as good as the details it quotes.
Draft the request
Ask Deal Dunk to cancel the account, stop all further charges and confirm in writing. Postbye prepares the letter from our English template, with the subject line “Subject: Subscription termination – Deal Dunk”.
Mail it with tracking
Address the envelope to Deal Dunk, Sheridan, exactly as printed in the next section. Certified mail gives you a tracking number and a delivery record.
File the delivery record
Delivery confirmation is your evidence that Deal Dunk was asked. Watch the next statement or two for any further Deal Dunk charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Deal Dunk cancellation letter goes
Deal Dunk takes its post at 1309 Coffeen Avenue, Suite 1200, Sheridan, WY 82801, which is where a cancellation letter belongs.
ZIP code 82801 is in Wyoming, so the letter stays inside the United States postal system.
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 Deal Dunk, with the envelope wording
Before you cancel Deal Dunk, check these
- Write well before the next billing date. A request that arrives after it can leave one more charge on your statement.
- 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.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Deal Dunk 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.
A mailed letter is slower than a phone call but it is the version that proves what you asked for and when.
Deal Dunk cancellation at a glance
- How Deal Dunk accepts cancellations
- By mailed letter
- Mailing address on file
- Deal Dunk 1309 Coffeen Avenue Suite 1200 Sheridan, WY 82801
- Country
- United States
- Letter language
- English (template en)
- Added to the database
- October 13, 2026
- Data last checked
