Cancel your China Unicom subscription by mail
For China Unicom the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. Letters to China Unicom go to Beijing, China.
Let Postbye cancel China Unicom 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 China Unicom.
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- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel China Unicom by mail
Get your account details together
Before writing, collect the account number, the phone number or service address being cancelled and the name on the account. China Unicom can only act on a request it can match to an account.
Prepare the letter
Because China Unicom is dealt with in Chinese, the letter is written in Chinese (template zh). Subject: “主题：取消请求 – [your name]”. It requests an end to the subscription and to every further charge, plus written confirmation.
Post it with proof of delivery
Send it certified to Beijing, China, copying the address from the next section letter for letter, and keep the receipt slip.
Save the tracking record
File the receipt with the letter. A China Unicom 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 China Unicom cancellation letter goes
For a letter to China Unicom, use 北京市西城区金融大街21号, 100033 Beijing, China.
Copy the postal code 100033 exactly: it is what routes the letter to Beijing, China.
The letter greets the reader with “相关负责人：”; your own details sit under the labels 账户持有人, 存档的账单地址 and 存档的电子邮件地址.
Prefer to write it yourself? Use our letter template
Every address we hold for China Unicom, with the envelope wording
Before you cancel China Unicom, check these
- Ask for a final bill in writing and return any rented equipment by tracked mail.
- Check for an early-termination fee or a remaining equipment balance before the cancellation date.
- If you are moving to another provider, keep the line active until the new service works, then cancel.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel China Unicom 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 phone or internet plan
Phone and internet providers tie cancellation to contracts, equipment balances and notice periods, so the request should name the exact line or service and ask for a final bill in writing.
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.
China Unicom cancellation at a glance
- How China Unicom accepts cancellations
- By mailed letter
- Mailing address on file
- China Unicom 北京市西城区金融大街21号 100033 Beijing China
- Country
- China
- Letter language
- Chinese (template zh)
- Category (from the company name)
- Phone & internet
- Added to the database
- September 28, 2026
- Data last checked
