If you have questions or comments about this notice, you may fill our contact form or by post to:

Para reclamações gerais ou consultas relacionadas à conta, entre em contato conosco através do formulário de contato. Observe que reclamações gerais podem levar até 7 dias úteis para serem resolvidas.
For assistance with any issues related to NETBilling, visit their official customer service page by following this link: https://www.netbilling.com/call-center-services/.
Here, you will find detailed information on how to contact their support team, including available services and operating hours.