Frauds locked my phone as lost
I am Iphone user from Kazakhstan and I can not get help from apple support service. Frauds locked my phone
Frauds hacked VK (social network popular in postsoviet countries) account of my friend. They wrote me: "I lost my phone, Could you please help me find it with your phone?...etc.." I did not know how to use the "find iphone" app, therefore I followed their instructions: logged out of my icloud and sign in to theirs'.
They immedeately set my iphone as "lost". So now my device is locked and I can not open it.
Could you, please, help me to regain access to my Iphone?
I could prove that I own this device by sending the data form its box; or if you track the icloud activity, you could see that my Icloud account had been active on my device till yesterday.
iPhone 7