Cancel your Effia subscription by mail
Effia accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. Our database has Effia's mailing address in Paris, France.
Let Postbye cancel Effia 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 Effia.
- 4.8 from 2,931 reviews
- 3 Effia cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Effia by mail
Get your account details together
You will need the name and email on the account and, if you have one, an account or customer number. Use exactly the details Effia holds, so the request can be matched to your account.
Draft the request
Because Effia is dealt with in French, the letter is written in French (template fr). Subject: “Objet : Demande d'annulation – [your name]”. It requests an end to the subscription and to every further charge, plus written confirmation.
Mail the letter with a receipt
Use certified mail for the 75012 Paris address in the next section, so the post office records the delivery. Write down the tracking number.
Keep the proof of delivery
It shows the date Effia received your letter. Check your next statement: no Effia charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Effia cancellation letter goes
Effia takes its post at Rue Hector Malot 20, 75012 Paris, France, which is where a cancellation letter belongs.
Paris is in Île-de-France, France; the postal code to quote is 75012.
The letter is addressed “À qui de droit,” and its details block uses the labels Titulaire du compte, Adresse de facturation enregistrée and E-mail enregistré.
Prefer to write it yourself? Use our letter template
Before you cancel Effia, 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 Effia 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.
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.
Effia cancellation at a glance
- How Effia accepts cancellations
- By mailed letter
- Mailing address on file
- Effia Rue Hector Malot 20 75012 Paris France
- Country
- France
- Letter language
- French (template fr)
- Added to the database
- June 4, 2026
- Data last checked
