Cancel your Smart cast subscription by mail
For Smart cast the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. Letters to Smart cast go to Irvine, United States.
Let Postbye cancel Smart cast 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 Smart cast.
- 4.8 from 2,931 reviews
- 3 Smart cast cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Smart cast by mail
Find your account details
Put the name and email on the account and, if you have one, an account or customer number in front of you before you write: the request to Smart cast is only as good as the details it quotes.
Prepare the letter
The letter asks Smart cast to end the account, stop every future charge and confirm it in writing, under the subject line “Subject: Subscription termination – Smart cast”. Postbye fills it in from our English template.
Post the letter
Take the letter to the post office and ask for certified delivery to 92618 Irvine. Keep the tracking number it gives you.
Hold on to the receipt
The receipt dates your request. Look at your next statement for any Smart cast charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Smart cast cancellation letter goes
Written requests to Smart cast go to 39 Tesla, Irvine, CA 92618.
Put ZIP 92618 on the envelope: Irvine is in California, and a domestic certified letter is all it takes.
The letter greets the reader with “To Whom It May Concern,”; your own details sit under the labels Name, Address and E-mail.
Prefer to write it yourself? Use our letter template
Every address we hold for Smart cast, with the envelope wording
Before you cancel Smart cast, check these
- 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.
- Cancelling usually ends access at the end of the period you paid for, so you keep what you paid for until then.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Smart cast 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
A subscription ends when the company records your request, not when you stop using it, and a letter is the record you can show later.
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.
Smart cast cancellation at a glance
- How Smart cast accepts cancellations
- By mailed letter
- Mailing address on file
- Smart cast 39 Tesla Irvine, CA 92618
- Country
- United States
- Letter language
- English (template en)
- Added to the database
- June 9, 2026
- Data last checked
