Cancel your Dext subscription by mail
For Dext the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. Letters to Dext go to London, United Kingdom.
Let Postbye cancel Dext 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 Dext.
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- 2 Dext cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Dext 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 Dext has on file.
Prepare the letter
The letter asks Dext to end the account, stop every future charge and confirm it in writing, under the subject line “Subject: Cancellation Request – [your name]”. Postbye fills it in from our English template.
Send it by certified mail
Use certified mail for the EC2A 4DS London address in the next section, so the post office records the delivery. Write down the tracking number.
File the delivery record
The receipt dates your request. Look at your next statement for any Dext charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Dext cancellation letter goes
Dext lists 25 Luke Street, Unit 1.2 Techspace Shoreditch, EC2A 4DS London, United Kingdom as its mailing address.
The envelope is going to London, United Kingdom, so the postcode EC2A 4DS must be on the front.
The database also lists Castlereagh Street 1, Suite 9.02, Level 9, 2000 Sydney, Australia for Dext. 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 Account holder, Billing address on file and Email on file.
Prefer to write it yourself? Use our letter template
Before you cancel Dext, check these
- Team and business plans are billed per seat. Name the plan and the number of seats in the request.
- Export or download your data first. Access often ends on the cancellation date.
- Annual plans can charge a cancellation fee or continue to the end of the term. Check the term on your invoice.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Dext 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.
A mailed letter is slower than a phone call but it is the version that proves what you asked for and when.
Dext cancellation at a glance
- How Dext accepts cancellations
- By mailed letter
- Mailing address on file
- Dext 25 Luke Street Unit 1.2 Techspace Shoreditch EC2A 4DS London United Kingdom
- Second address on file
- Dext Castlereagh Street 1 Suite 9.02, Level 9 2000 Sydney Australia
- Country
- United Kingdom
- Letter language
- English (template en-generic)
- Category (from the company name)
- Software & apps
- Added to the database
- May 7, 2026
- Data last checked
