Hey edarblanco! Great question. We have a list of all of the requirements here - Unlock your mobile wireless device. If you've received the phone as a gift, but are a current or former T-Mobile customer and have used it on the network to satisfy the usage requirements, then you'd simply need to check with the person who gave it to you to ensure that there's no outstanding balance owed for the equipment. If you're good to go with all of those requirements already, just Contact Us and we are happy to go ahead and get the request filed for you!
Thanks for everything and prompt reply, I will follow your advice