Recursos do Microsoft 365 que ajudam os usuários a gerenciar suas assinaturas, configurações de conta e informações de cobrança.
Hello
If it was an account that you dont recognize, it means the code sold to you was used or compromised.
Unfortunately, Microsoft cannot be responsible for codes purchased from third party.
Microsoft explains it here: https://support.microsoft.com/account-billing/manage-your-microsoft-365-subscription-purchased-through-a-third-party-44749f45-4c0b-5d41-a73f-7634b8d2a763