Please help me, I need your helps
Hello, I bought an Iphone 12 pro max in United States last year. MY warranty on 12th January 2022, but now I'm having a big problem it has been shut down suddenly, I did not do anything, just left it on my desk until I took it on to use and realize it does not work anymore. I moved to Vietnam for living now, and I have 10 days left of warranty from Apple. How can I do now, I brought it to Authorised Service Provider of Apple, the staff said: need to have an original invoice of Apple when bought it in United State. However, I lost it already, I don't know what to do now. Please help me out with this problem? Thank you