Cancel your Greentheory subscription by mail
For Greentheory the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. Letters to Greentheory go to Massa, Italy.
Let Postbye cancel Greentheory 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 Greentheory.
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- 2 Greentheory cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Greentheory by mail
Gather your account details
Have the name and email on the account and, if you have one, an account or customer number to hand. The details in the letter need to match what Greentheory has on file.
Put the request in writing
Because Greentheory is dealt with in Italian, the letter is written in Italian (template it). Subject: “Oggetto: Richiesta di cancellazione – [your name]”. It requests an end to the subscription and to every further charge, plus written confirmation.
Mail it with tracking
Take the letter to the post office and ask for certified delivery to 54100 Massa. Keep the tracking number it gives you.
File the delivery record
The receipt dates your request. Look at your next statement for any Greentheory charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Greentheory cancellation letter goes
For a letter to Greentheory, use Via Marina Vecchia, 54100 Massa, Italy.
Massa is in Toscana, Italy; the postal code to quote is 54100.
Your name, address and email appear in a short block labelled Titolare dell'account, Indirizzo di fatturazione registrato and Email registrata, under the greeting “A chi di competenza,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Greentheory, with the envelope wording
Before you cancel Greentheory, 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 Greentheory 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.
A letter is the formal route: it states the request in writing, carries a date and, sent by certified mail, comes with proof of delivery.
Greentheory cancellation at a glance
- How Greentheory accepts cancellations
- By mailed letter
- Mailing address on file
- Greentheory Via Marina Vecchia 54100 Massa Italy
- Country
- Italy
- Letter language
- Italian (template it)
- Added to the database
- May 13, 2026
- Data last checked
