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Last updated 20 August 2026

Customer service

Email is the fastest way to reach a person. We aim to reply within two business days.

  • info@zibillion.com

What to write about where

  • Help with a session — something not working, audio trouble, a tutor behaving oddly.
  • Billing — refunds, cancellation, a charge you do not recognise. See refunds and cancellation first; it may answer you faster than we can.
  • Privacy — data access, correction or deletion requests. Export and deletion are also self-service in your account settings.

Postal address

Tuvello is operated by Zibillion LLC, a limited liability company formed in the State of Wyoming, United States. Where these terms say “we”, “us” or “Tuvello”, they mean Zibillion LLC.

  • Zibillion LLC
  • 30 N Gould St, Ste N
  • Sheridan, WY 82801
  • United States
  • info@zibillion.com

Before you write about billing

Cancelling is self-service: open Billing settings in your account. Cancellation stops the next charge and you keep access until the end of the period you have paid for. If a charge looks wrong, please write to us before raising a dispute with your bank — it is almost always quicker to fix directly.

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© 2026 Zibillion LLC. Tuvello is a service of Zibillion LLC, a Wyoming limited liability company. Made for better conversations.