Where to send your Unacsa cancellation letter
Read the addresses on this page next to the full guide to cancelling Unacsa.
The addresses we hold
Every address our database holds for Unacsa, with the Tres Cantos one a cancellation letter goes to first and the envelope wording that matches it.
Where the letter goesMailing address
UnacsaCalle de Isaac Newton 428760 Tres CantosSpainThe Spain address on file for Unacsa. Postal code 28760.
How to address the envelope
Copy the address exactly
The envelope reads Calle de Isaac Newton 4, 28760 Tres Cantos, Spain. Match the spacing and the box or street line exactly as printed.
Put your own address on it
Top-left, your own name and address. A return address is what the post office needs to send the letter back if Unacsa has moved.
Ask for certified mail
Ask at the counter for the certified service with a return receipt: the fee is on top of the postage, the receipt is postmarked, and the article number traces the delivery.
File the receipt with your copy
Keep your copy of the letter, the receipt and the delivery record in one place. The delivery date is the one to quote if the account is billed again.
Your letter to Unacsa
The letter below asks Unacsa to end the account, stop further charges and confirm in writing. Put the name and email on the account and, if you have one, an account or customer number in the bracketed places.
[Your name] [Your street address] [City, State ZIP] [Your email address]
[Date]
Unacsa Calle de Isaac Newton 4 28760 Tres Cantos Spain
To whom it may concern,
I am cancelling my account with Unacsa, account or member number [number], with effect from [date or "immediately"]. Please end every add-on and linked plan on this account at the same time.
Please stop all future charges to my payment method, remove my stored payment details, and send written confirmation of the cancellation and its effective date to [your email address].
Sincerely, [Signature] [Your printed name]
Keep reading
The full guide to cancelling this company, our letter template and the postal guides.
Let Postbye cancel Unacsa 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.