Guzu offers a program to send in your old phones for cash. I have used many sites like this, gazelle and eBay, and those have always been legit. Sent in my old phone to Guzu and have never received a payment, they have one customer service rep email me the same email every time I reach out. There is no phone number to contact and no way to reach anyone else besides "Amanda" total scam, It's now been months. How can they legally do this? How can we make a stand together and file a large class action lawsuit.