Overnite Express — fraudulent on olx

Address:

New Delhi, Delhi, 110005

I m nitesh prajapati i m a resident of gorakhpur uttar pradesh
Currently i'm staying in new delhi as a jee advance aspirant
I saw an ad on olx selling poco f1 at a price of 5800... I talked to the owner and finalise the phone at 5500. He told me that he is an indian army officer he will send me phone throught a parcel and i will be provided 30 minutes to check the phone and then i have to made the payment
At the same day evening i have recieved a call from a so called postman that i have a parcel to recieve and he asked me to pay 2000rs initially as he says it's mandatory to pay this amount to take the parcel from the army officer
Then i called to the owner and he told me that you have to pay the amount as it is necessary to make the parcel out for delivery i paid the amount
Then again the postman called me asking for 3000 more saying the the colonel (Saying him bade sahab) of indian army online parcel is asking for 3000 more
Then the owner asked me to do the payment and told me after i will be delivered the phone and i have to pay nothing so finally since i was a big fool and in a hurry of buying a new phone i made the payment
After that he told me that i have done the late payment so i have to pay the 3000 again and if i do not liked the phone my 8000 rupees will be refunded within a minute then i refused to pay any further amount and now he is neither refunding my money not delivering the mobile
Please help this 5000 i lost means a lot to me
Here are the contacts to the frauds
The one addressing him as army officer - [protected]
Of the postman - [protected]
Account in which i paid the account - [protected] on the name is sanskar ahuja