Cancel your Biosteel subscription by mail
Biosteel deals with cancellations through the post, so the request goes in a letter and the certified-mail receipt is your proof of when. Letters to Biosteel go to Windsor, Canada.
Let Postbye cancel Biosteel 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 Biosteel.
- 4.8 from 2,931 reviews
- 3 Biosteel cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Biosteel by mail
Note your account details
Start with the name and email on the account and, if you have one, an account or customer number, so the request to Biosteel names the right account the first time.
Put the request in writing
State plainly that you want the Biosteel account cancelled, further charges stopped and a written confirmation sent to you. Postbye sets this out in a ready English template (“Subject: Cancellation Request – [your name]”).
Mail it with tracking
Mail the letter by certified mail to the Windsor address in the next section, and keep the tracking number.
Keep the delivery receipt
It shows the date Biosteel received your letter. Check your next statement: no Biosteel charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Biosteel cancellation letter goes
Biosteel takes its post at Sylvestre Drive 13455, N8N 2L9 Windsor, Canada, which is where a cancellation letter belongs.
The postcode N8N 2L9 belongs to Ontario, Canada, so this is where the envelope is delivered.
The letter greets the reader with “To Whom It May Concern,”; your own details sit under the labels Account holder, Billing address on file and Email on file.
Prefer to write it yourself? Use our letter template
Every address we hold for Biosteel, with the envelope wording
Before you cancel Biosteel, 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 Biosteel 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.
Biosteel cancellation at a glance
- How Biosteel accepts cancellations
- By mailed letter
- Mailing address on file
- Biosteel Sylvestre Drive 13455 N8N 2L9 Windsor Canada
- Country
- Canada
- Letter language
- English (template en-generic)
- Added to the database
- May 19, 2026
- Data last checked
