Where to send your Gmass cancellation letter
Read the addresses on this page next to the full guide to cancelling Gmass.
The addresses we hold
Everything we hold on where Gmass takes its post: the 60611 Chicago delivery point for a cancellation letter, any second address, and how to send it so the delivery is on record.
Where the letter goesMailing address
Gmass401 Unit 63E N Wabash AveChicago, IL 60611Gmass takes its post at this Illinois address (ZIP 60611).
How to address the envelope
Copy it exactly onto the envelope
Write out 401 Unit 63E N Wabash Ave, Chicago, IL 60611 as shown above, including the 60611 postal code, exactly as printed.
Add the return address
Your name and postal address go top-left on the front (or the back flap). If the letter cannot be delivered it comes back to you, which is itself evidence of the attempt.
Ask for certified mail
Take the letter to a post office counter and ask for certified mail: you get a postmarked receipt and a delivery record. Keep the tracking number and check it until it shows delivered.
Keep the records
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.
The letter, written out
A plain, dated letter to Gmass 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]
Gmass 401 Unit 63E N Wabash Ave Chicago, IL 60611
To whom it may concern,
I am cancelling my account with Gmass, 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 Gmass 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.