Cancel your Synergy subscription by mail
Cancelling Synergy means putting it in writing; the company takes requests by mailed letter, and a tracked one leaves a clear record. Our database has Synergy's mailing address in Westport, United States.
Let Postbye cancel Synergy 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 Synergy.
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- 3 Synergy cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Synergy by mail
Gather your account details
Put the account email, the plan or product name and the invoice or order number from your latest receipt in front of you before you write: the request to Synergy is only as good as the details it quotes.
Prepare the letter
Ask Synergy 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 – Synergy”.
Send the letter by certified mail
Use certified mail for the 06880 Westport address in the next section, so the post office records the delivery. Write down the tracking number.
Hold on to the receipt
Keep the tracking record with your copy of the letter. If Synergy 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 Synergy cancellation letter goes
The mailing address we hold for Synergy is 55 Greens Farms Road, Westport, CT 06880.
Westport is in Connecticut (ZIP 06880), a domestic address for certified mail within the United States.
The database also lists Buena Vista Drive 57A, 1, 3094 Montmorency, Australia for Synergy. Use the first address above unless your agreement names this one.
The letter is addressed “To Whom It May Concern,” and its details block uses the labels Name, Address and E-mail.
Prefer to write it yourself? Use our letter template
Every address we hold for Synergy, with the envelope wording
Before you cancel Synergy, check these
- Export or download your data first. Access often ends on the cancellation date.
- Annual plans can charge a cancellation fee or continue to the end of the term. Check the term on your invoice.
- Apps billed by an app store are cancelled in that store. Check which party appears on your statement.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Synergy 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 software or app subscription
Software plans are billed per plan or per seat, often yearly, and the app store version is billed by the store rather than the developer, so the request has to name the plan and who bills it.
A mailed letter is slower than a phone call but it is the version that proves what you asked for and when.
Synergy cancellation at a glance
- How Synergy accepts cancellations
- By mailed letter
- Mailing address on file
- Synergy 55 Greens Farms Road Westport, CT 06880
- Second address on file
- Synergy Buena Vista Drive 57A 1 3094 Montmorency Australia
- Country
- United States
- Letter language
- English (template en)
- Category (from the company name)
- Software & apps
- Added to the database
- April 30, 2026
- Data last checked
