[Resolved]  Olx India — advance money transfer cheat with not sending me the product

Address:

New Delhi, Delhi, 110049

Hello sir,
I'm ramanuj kumar, i'm a student in delhi. My olx user name is ramanuj, regestered email - loveramanuj. [protected]@gmail.com, regestered phone - 7503*3.
On 29 august 2017, i searched iphone 6 on olx, and i found a guy named kunal dahiwal, his contact number is [protected]. Now, i really don't know where he is from.
He had post an add of iphone6, at that time his price was around ₹19000 of his iphone6. So, i requested to him that i would like to buy it for 15000₹. And then he messaged me ok & also gave me the contact number.
And then i talked to him and discuss about that phone. So then said he is in pune. But i searched with innearby area (Delhi, yusuf sarai) in olx while searching. So i ask to him that, you said you are in pune but the ad showing me the location of delhi south ex. So then he said, (Sorry, that was my fault i made a mistake while entering the address, but i'm from pune.)
Then i feel unsafe at that time, but after conversation between us sometime at 6:25pm. He said (Don't worry i'm also a student, so trust me and give me your address, i'll courier you now from dtdc. But you have to pay me some advance via paytm at[protected]. So i text him my address and pay 1000₹ in advance via paytm. Then after sometime, i called him and told that i have sent you the money in your paytm account & ask him the courier details.
Then he said, i'm on the way to home so when i reach i'll send you the courier detail.
But no any response from him, so i called him again and ask the courier detail.
But then, he said (Sorry, my father caught me and he punished me and said that why you gave your phone to someone for 1000₹, because he thought that i sold it only for 1000₹, because you transfer me only 1000₹ now. So you have to pay more in advance now).
Then i said sorry, i'll send you the but you have to give the courier details. And i also said, i'll send you the full money after receiving the courier.
But now after 3days, he neither call me back nor message me. And between these 3 days, i tried many times to contact his but their mobile was switched off and he deactivated his olx account. But today[protected], he opened activated their olx account. And posted the same ad again, and then i messaged, i know you haven't send me that phone, but don't worry, just refund me my money. Otherwise i'll complaint against you.
Then, he seen my message on olx but no reply from him.

So, please sir. Do help me. I'll be very happy and thankful to you.
Ramanuj kumar
Total money i transferred - ₹1000
Via paytm to[protected] named kunal dahiwal