Hello @Wioleta Stankiewicz,

Thank you for your message. Please allow us to assist you.

Send us a private message to the @Fórum profile with your costumer or account number, please.

Thank you 

Thank you Joao,

 I've already asked that question on the private forum profile more the one-week ago and there is no reply so far.

My biggest doubt is if I have to return router device?

Also, I am not satisfied with the information I was provided via calls, and would like to verify this with some official guidance of cancellation process.

Olá @Wioleta Stankiewicz,

We’ll reply to your message as soon as we can. 

Thank you