Cancel your Docomo subscription by mail
To end a Docomo subscription you write to them: Docomo handles cancellations by post. Post for Docomo is handled in Chiyoda City, Japan, which is where your letter is headed.
Let Postbye cancel Docomo 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 Docomo.
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- 2 Docomo cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Docomo by mail
Note your account details
Before writing, collect the name and email on the account and, if you have one, an account or customer number. Docomo can only act on a request it can match to an account.
Write the cancellation request
The request is prepared in Japanese (template ja), under the subject line “件名: 解約依頼 – [your name]”: end the subscription, stop all further charges and confirm in writing to you.
Mail the letter with a receipt
Take the letter to the post office and ask for certified delivery to 0014 Chiyoda City. Keep the tracking number it gives you.
Keep the proof of delivery
File the receipt with the letter. A Docomo charge dated after delivery is the one to dispute, and these two documents are what you quote.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Docomo cancellation letter goes
The mailing address we hold for Docomo is 11-1 Nagata-cho 2-chome, Chiyoda-ku, Sanno Park Tower, 0014 Chiyoda City, Japan.
Postal code 0014 places the address in Tokyo, Japan.
The database also lists Fritz-Vomfelde-Straße 26, 40547 Düsseldorf, Germany for Docomo. Use the first address above unless your agreement names this one.
Inside, the salutation reads “関係各位”, followed by your details under アカウント名義人, 請求先住所 and 登録メールアドレス.
Prefer to write it yourself? Use our letter template
Before you cancel Docomo, check these
- Check your next statement: no charge should appear after the cancellation date.
- 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.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Docomo 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
Subscriptions renew automatically, and a written request is the clearest record that you asked to stop it before the next billing date.
A mailed letter is slower than a phone call but it is the version that proves what you asked for and when.
Docomo cancellation at a glance
- How Docomo accepts cancellations
- By mailed letter
- Mailing address on file
- Docomo 11-1 Nagata-cho 2-chome, Chiyoda-ku Sanno Park Tower 0014 Chiyoda City Japan
- Second address on file
- Docomo Fritz-Vomfelde-Straße 26 40547 Düsseldorf Germany
- Country
- Japan
- Letter language
- Japanese (template ja)
- Added to the database
- May 6, 2026
- Data last checked
