It my first iphone and I have become a victim of scammers, and in my iPhone, there is someone else’s account. The support service refuses to help me because I don’t have the receipt or the box. The name of the phone remains the same, I can log into the App Store with my account, although it asks for my password every time. The main settings are under the scammers' password and I can't do anything about it. Overall, I can still use the phone. But I would like to solve this problem. What can I do in this situation? Or is it easier to sell it for parts?