Blocked phone by scammers!

Hi. I m so stupid , I know it. I m from Bishkek, Kyrgyzstan. I was selling my phone on Lalafo web store in my city. And some contact wrote me message like « I want to buy your phone but I should be sure in that I can restore my documents in my phone with my cloud».

and this person asked me to go into his icloud.

and he said that he will come to my address where I live after several hours.

of course I didn’t think badly, and tried to get into his iCloud.

after I got into, he blocked my phone and turn on the function “find iPhone” and started to ask money from me.

I said what was thinking, I can recover my phone by restoring in Itunes. But it was unlucky. And now my phone blocked.

Now I m asking help from supporting system of Apple to unblock my phone.

i have all documents for my iPhone: the original box, receipt of purchase, screenshots of talking with the scammer.

I m looking forward for your answer, thanks.

[Edited by Moderator]