Cancel your Relief Factor by Promedev subscription by mail
To end a Relief Factor by Promedev subscription you write to them: Relief Factor by Promedev handles cancellations by post. Post for Relief Factor by Promedev is handled in Kirkland, United States, which is where your letter is headed.
Let Postbye cancel Relief Factor by Promedev 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 Relief Factor by Promedev.
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- 3 Relief Factor by Promedev cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Relief Factor by Promedev by mail
Start with your account details
Check your donor or supporter number, the name on the donation and the amount and date of the latest payment before anything else. A request that does not match the account on file at Relief Factor by Promedev is the easiest one to set aside.
Write your request
State plainly that you want the Relief Factor by Promedev account cancelled, further charges stopped and a written confirmation sent to you. Postbye sets this out in a ready English template (“Subject: Subscription termination – Relief Factor by Promedev”).
Post the letter
Post it by certified mail to Relief Factor by Promedev in Kirkland, United States, using the exact address below, and note the tracking number.
Save the tracking record
Keep the tracking record with your copy of the letter. If Relief Factor by Promedev bills you after the date it received the request, you have the dates to point to.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Relief Factor by Promedev cancellation letter goes
Relief Factor by Promedev can be reached by post at 11335 North East 122nd Way, Suite 140, Kirkland, WA 98034.
Kirkland, Washington 98034 is a United States address, so ordinary certified mail reaches it.
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 Relief Factor by Promedev, with the envelope wording
Before you cancel Relief Factor by Promedev, check these
- Say whether the request covers every regular gift or only one of them.
- Ask the organisation to confirm the end date in writing.
- Quote your donor or supporter number so the right gift is stopped.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Relief Factor by Promedev 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 regular donation
Regular donations run until the donor ends them, so a written request should give the donor reference and ask the charity to stop the payment and confirm the end 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.
Relief Factor by Promedev cancellation at a glance
- How Relief Factor by Promedev accepts cancellations
- By mailed letter
- Mailing address on file
- Relief Factor by Promedev 11335 North East 122nd Way Suite 140 Kirkland, WA 98034
- Country
- United States
- Letter language
- English (template en)
- Category (from the company name)
- Charities & donations
- Added to the database
- April 30, 2026
- Data last checked
