My j7 pro phone exploded

It was in the morning and I was going to school and I was in the dinning room than I felt a burning sensation on my thigh and I pulled out my phone and than it caught on fire than I through it out and than when I went to go see it its was gone I'm so sad and its an expensive phone .plz give me a refund or plz send me a new one! Thank you

Regards:denzel gama