preciso mudar meu número de contato

This translate as: 
I don't have access to the number registered on the account and I need to change it to log in

Hi Botzin007,

I understand that you wanted to change the phone number associated with your Razer ID. Please PM me with the following for verification of our account and for me to initiate a ticket on your behalf: 

Email Address associated with your Razer ID:
Date of Birth:
Full Name:
Old phone number:
New Phone number: