Lost iphone found

Hi All,

I have found my lost iPhone after years. This is iPhone 11 and I think I lost this in Nov 2019. Fortunately, I'm to found this after a long time. I reported to the insurance company when I lost it and it has been locked by them since then. Now, I want to unlock my iPhone to use.

I need some suggestions to unlock this iphone. Please advise.

Thank you in advance.