Cancel your Institut Curie subscription by mail
Institut Curie deals with cancellations through the post, so the request goes in a letter and the certified-mail receipt is your proof of when. Post for Institut Curie is handled in Paris, France, which is where your letter is headed.
Let Postbye cancel Institut Curie 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 Institut Curie.
- 4.8 from 2,931 reviews
- 2 Institut Curie cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Institut Curie by mail
Get your account details together
Check the name and email on the account and, if you have one, an account or customer number before anything else. A request that does not match the account on file at Institut Curie is the easiest one to set aside.
Write your request
Because Institut Curie 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.
Post the letter
Send it certified to Paris, France, copying the address from the next section letter for letter, and keep the receipt slip.
Keep the delivery receipt
The receipt dates your request. Look at your next statement for any Institut Curie charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Institut Curie cancellation letter goes
Institut Curie lists Rue d'Ulm 26, 75248 Paris, France as its mailing address.
The envelope is going to Paris in Île-de-France, France, so the postcode 75248 must be on the front.
Your details go in a block headed by Titulaire du compte, Adresse de facturation enregistrée and E-mail enregistré, and the opening line is “À qui de droit,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Institut Curie, with the envelope wording
Before you cancel Institut Curie, check these
- Look for annual or multi-month plans. A plan paid in advance usually runs to the end of the period you paid for.
- 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.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Institut Curie 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.
Institut Curie cancellation at a glance
- How Institut Curie accepts cancellations
- By mailed letter
- Mailing address on file
- Institut Curie Rue d'Ulm 26 75248 Paris France
- Country
- France
- Letter language
- French (template fr)
- Added to the database
- June 4, 2026
- Data last checked
