Couple days ago I bought an Axon 7 mini from a US military coworker that finish his tour and want to sell his phone. Working OK, but today after a issue with my car, the phone broken his display. I know that is possible to send in USA to replace the broken display, but I have no prove to demonstrate that the phone was bought from USA. I'm sure that was bought from one of the bigger retailers, Amazon, Best Buy, Costco, Walmart, because I knew that my buddy spend a lot of money for shopping. Of course I try to contact him but it not answered untill know. What can I do in this case?