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Cancel your Ultimapeak subscription by mail

Ultimapeak accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. Letters to Ultimapeak go to Dover, United States.

Let Postbye cancel Ultimapeak 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 Ultimapeak.

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  • 3 Ultimapeak cancellations handled this month
  • Certified mail with tracking
  • Mailed every business day
  • Delivery proof sent to you
  • We confirm your cancellation

How to cancel Ultimapeak by mail

  1. Start with your account details

    Ultimapeak will look your account up from what the letter says, so check the name and email on the account and, if you have one, an account or customer number first.

  2. Put the request in writing

    Ask Ultimapeak 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 – Ultimapeak”.

  3. Mail the letter with a receipt

    Take the letter to the post office and ask for certified delivery to 19901 Dover. Keep the tracking number it gives you.

  4. Keep the proof of delivery

    Delivery confirmation is your evidence that Ultimapeak was asked. Watch the next statement or two for any further Ultimapeak charge.

With Postbye, steps 2 to 4 take about two minutes of your time.

Where your Ultimapeak cancellation letter goes

Ultimapeak614 North Dupont HighwayDover, DE 19901

For a letter to Ultimapeak, use 614 North Dupont Highway, Dover, DE 19901.

Dover, Delaware 19901 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 Ultimapeak, with the envelope wording

Before you cancel Ultimapeak, 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 Ultimapeak 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.

Cancel Ultimapeak

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.

Ultimapeak cancellation at a glance

How Ultimapeak accepts cancellations
By mailed letter
Mailing address on file
Ultimapeak 614 North Dupont Highway Dover, DE 19901
Country
United States
Letter language
English (template en)
Added to the database
July 10, 2026
Data last checked

Ultimapeak cancellation questions

Where do I send my Ultimapeak cancellation letter?

Address the letter to Ultimapeak, 614 North Dupont Highway, Dover, DE 19901.

How long does a cancellation letter to Ultimapeak take?

Ultimapeak's address is in Delaware. USPS states that First-Class Mail is delivered in 1 to 5 days. The delivery receipt records the day your letter actually arrived, and that is the date to quote. USPS: First-Class Mail

What do I need to cancel Ultimapeak?

Have the name and email on the account and, if you have one, an account or customer number to hand. The details in the letter need to match what Ultimapeak has on file.

Will Ultimapeak confirm my cancellation?

The letter asks Ultimapeak to end the account, stop further charges and confirm in writing, but a reply is not guaranteed. What you can rely on is the delivery receipt: it shows the date Ultimapeak received the request. If a charge posts after that date, quote the receipt with your copy of the letter.