Cancel your Altrx subscription by mail
Altrx accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. Post for Altrx is handled in Miami, United States, which is where your letter is headed.
Let Postbye cancel Altrx 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 Altrx.
- 4.8 from 2,931 reviews
- 3 Altrx cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Altrx by mail
Note 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 Altrx is only as good as the details it quotes.
Set out the request
Your Postbye letter to Altrx asks for three things: the account closed, no further charges and a written confirmation, all under “Subject: Subscription termination – Altrx”. It comes from our English template.
Mail the letter with a receipt
Take the letter to the post office and ask for certified delivery to 33137 Miami. Keep the tracking number it gives you.
File the delivery record
Once the letter is delivered, the date on the receipt is the date Altrx was told. Compare it with your statements over the next billing cycle.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Altrx cancellation letter goes
Altrx can be reached by post at 3206 NE 2nd Ave, Suite 3013, Miami, FL 33137.
ZIP code 33137 is in Florida, so the letter stays inside the United States postal system.
Inside, the salutation reads “To Whom It May Concern,”, followed by your details under Name, Address and E-mail.
Prefer to write it yourself? Use our letter template
Before you cancel Altrx, check these
- Use the same name and email as on the account. A mismatch can delay the request.
- 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.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Altrx 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
Most subscriptions keep billing until someone tells the company to stop, and a dated letter is proof that somebody did.
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.
Altrx cancellation at a glance
- How Altrx accepts cancellations
- By mailed letter
- Mailing address on file
- Altrx 3206 NE 2nd Ave Suite 3013 Miami, FL 33137
- Country
- United States
- Letter language
- English (template en)
- Added to the database
- June 9, 2026
- Data last checked
