Cancel your Phillips 66 subscription by mail
Phillips 66 takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. The cancellation address on file for Phillips 66 is in Houston, United States.
Let Postbye cancel Phillips 66 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 Phillips 66.
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- 2 Phillips 66 cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Phillips 66 by mail
Find 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 Phillips 66 has on file.
Put the request in writing
Ask Phillips 66 to cancel the account, stop all further charges and confirm in writing. Postbye prepares the letter from our English template, with the subject line “Subject: Subscription termination – Phillips 66”.
Send it by certified mail
Send the letter to the Houston mailing address shown below by certified mail. Keep the tracking number safe.
File the delivery record
File the receipt with the letter. A Phillips 66 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 Phillips 66 cancellation letter goes
For a letter to Phillips 66, use 2331 CityWest Blvd, Houston, TX 77242-1959.
With ZIP 77242-1959, the address sits in Texas and the letter never leaves the United States postal system.
Your name, address and email appear in a short block labelled Name, Address and E-mail, under the greeting “To Whom It May Concern,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Phillips 66, with the envelope wording
Before you cancel Phillips 66, 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 Phillips 66 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 letter is the formal route: it states the request in writing, carries a date and, sent by certified mail, comes with proof of delivery.
Phillips 66 cancellation at a glance
- How Phillips 66 accepts cancellations
- By mailed letter
- Mailing address on file
- Phillips 66 2331 CityWest Blvd Houston, TX 77242-1959
- Country
- United States
- Letter language
- English (template en)
- Added to the database
- April 30, 2026
- Data last checked
