Fraud — Fraud by smeone using army name

Address:

Ariport bengaluru CISF his address

Hi sir
Fraud name is =[protected]
The name he told CISF= Santosh Kumar Choudhary.
Courrier person name told
Army Courrier=Sumit Kumar
[protected]
Yesturday i was searching laptops in olx.then i see the laptop which under 8000rs is. then i contact him, he told me iam army officer I'm selling my laptop because I have Apple laptop, so i believe him .after he asked me advance amount for army courrier fecilities .I paid him, today morning he give number of sumit Kumar courrier person.i called to sumit Kumar he said you need to pay of GST amount then we will send you laptop, then I have dout on them, I asked them to return my money I dont want your laptop, then he talk with very bad words durty words & he blocked me. pls help me to get my amount back.