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How to delete your OI account

Deletion instructions

Last verified: 10/18/2026

To delete your OI account, log in to the Minha OI customer portal. Navigate to the account settings section and select the option to cancel your service. To ensure the permanent deletion of your personal data, send a formal request to their official support email address.

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About deleting your OI account

OI is a major telecommunications provider offering fixed-line, mobile telephony, broadband internet, and pay television services primarily in Brazil. Users register extensive personal data, including full names, tax identification numbers (CPF), residential addresses, and precise geolocation data derived from mobile network usage. Many users choose to delete their OI accounts due to the transition to other fiber providers, dissatisfaction with historical billing complexities, or concerns regarding the long-term storage of sensitive financial and service-usage history.

  • Access to the Minha OI self-service portal.
  • Deactivation of recurring billing and service subscriptions.
  • Removal of identity verification documents linked to service contracts.
  • Severing the link between your digital footprint and OI's centralized CRM systems.

What happens to your data

When you request account deletion, OI is legally obligated to terminate the processing of your data for marketing and service profiling. However, under Brazilian law (LGPD) and telecommunications regulatory frameworks (ANATEL), OI may retain specific transactional records for a mandatory period to fulfill tax and accounting obligations.

  • Personal identification: Full name, date of birth, and CPF.
  • Contact details: Registered email addresses and mobile contact numbers.
  • Financial records: Historical invoice data, payment methods, and debt status.
  • Service logs: Usage history, call metadata, and broadband traffic metrics.

Privacy considerations

OI has historically utilized subscriber data for internal analytics and targeted promotional campaigns. Closing your account is a critical step in minimizing your exposure to third-party data sharing and potential marketing profiling. To maximize privacy, ensure that any devices provided by OI are returned or factory reset, as they may store local network configuration data.

  • Always request a formal confirmation of account closure via email.
  • Review your 'Minha OI' privacy settings before requesting full termination.
  • Note that deleting your account will result in the loss of all historical billing statements.
  • Ensure all auto-debit payments are revoked through your bank independently of the OI platform.

Frequently Asked Questions

Will deleting my OI account automatically stop my billing?

No, you must ensure all outstanding debts are settled and the service cancellation is processed through the Minha OI portal to prevent further automated charges.

Can I recover my data after deleting my OI account?

Once the deletion process is finalized in the internal systems, the recovery of personal records and service history is generally not possible.

Does OI keep my call logs after account closure?

OI may retain call metadata for the duration required by telecommunications regulators to ensure compliance with legal and audit standards.

How do I confirm my personal data was removed?

Follow up your cancellation request by emailing OI's support department and explicitly requesting confirmation of data erasure under the LGPD guidelines.

Is the Minha OI app required to delete the account?

While the app provides a convenient interface, you can also access the Minha OI desktop portal, which often provides more granular control over account-level administrative tasks.

Do I need to return my router or modem to secure my data?

Yes, returning OI-owned hardware is essential as it prevents any potential residual data retrieval from your local configuration settings.

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