Where to send your Fireflies cancellation letter
Read the addresses on this page next to the full guide to cancelling Fireflies.
The addresses we hold
Where a cancellation letter to Fireflies should be sent: the verified London address below, plus the other addresses on file, and how to write them on the envelope.
Where the letter goesMailing address
Fireflies71-75 Shelton StreetWC2H 9JQ LondonUnited KingdomThe United Kingdom address on file for Fireflies. Postal code WC2H 9JQ.
Second address on file
FirefliesSunol Boulevard 542410 531Pleasanton 94566The database lists this as a second address for Fireflies. Use the primary address above unless your agreement names this one.
How to address the envelope
Use the address letter for letter
One address block, copied whole: 71-75 Shelton Street, WC2H 9JQ London, United Kingdom. If any line differs from the card above, start the envelope again.
Add the return address
Top-left, your own name and address. A return address is what the post office needs to send the letter back if Fireflies has moved.
Buy the certified service
Certified, not courier: buy it at the counter, keep the postmarked slip, and the letter to London is traceable from the article number until it is signed for.
Keep what the post office gives you
Your copy of the letter, the mailing receipt and the tracking record belong together in one file.
The cancellation letter
A plain, dated letter to Fireflies asking for the cancellation, the end of every charge and written confirmation. Have the account email, the plan or product name and the invoice or order number from your latest receipt to hand; our letter template fills the same shape in on screen.
[Your name] [Your street address] [City, State ZIP] [Your email address]
[Date]
Fireflies 71-75 Shelton Street WC2H 9JQ London United Kingdom
To whom it may concern,
I am cancelling my account with Fireflies, 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 Fireflies 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.