Cancel your Quillbot subscription by mail
Quillbot accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. Our database has Quillbot's mailing address in Chicago, United States.
Let Postbye cancel Quillbot 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 Quillbot.
- 4.8 from 2,931 reviews
- 3 Quillbot cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Quillbot by mail
Note your account details
Have the account email, the plan or product name and the invoice or order number from your latest receipt to hand. The details in the letter need to match what Quillbot has on file.
Prepare the letter
State plainly that you want the Quillbot account cancelled, further charges stopped and a written confirmation sent to you. Postbye sets this out in a ready English template (“Subject: Subscription termination – Quillbot”).
Mail the letter with a receipt
Send the letter to the Chicago mailing address shown below by certified mail. Keep the tracking number safe.
Keep the proof of delivery
It shows the date Quillbot received your letter. Check your next statement: no Quillbot charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Quillbot cancellation letter goes
Written requests to Quillbot go to 303 East Wacker, Suite 2101, Chicago, IL 60601.
ZIP code 60601 is in Illinois, so the letter stays inside the United States postal system.
The database also lists Haddington Road, D04 XN32 Dublin, Ireland for Quillbot. Use the first address above unless your agreement names this one.
The letter is addressed “To Whom It May Concern,” and its details block uses the labels Name, Address and E-mail.
Prefer to write it yourself? Use our letter template
Every address we hold for Quillbot, with the envelope wording
Before you cancel Quillbot, check these
- Annual plans can charge a cancellation fee or continue to the end of the term. Check the term on your invoice.
- Apps billed by an app store are cancelled in that store. Check which party appears on your statement.
- Team and business plans are billed per seat. Name the plan and the number of seats in 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 Quillbot 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 software or app subscription
Software plans are billed per plan or per seat, often yearly, and the app store version is billed by the store rather than the developer, so the request has to name the plan and who bills it.
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.
Quillbot cancellation at a glance
- How Quillbot accepts cancellations
- By mailed letter
- Mailing address on file
- Quillbot 303 East Wacker Suite 2101 Chicago, IL 60601
- Second address on file
- Quillbot Haddington Road D04 XN32 Dublin Ireland
- Country
- United States
- Letter language
- English (template en)
- Category (from the company name)
- Software & apps
- Added to the database
- April 30, 2026
- Data last checked
