Indian Army — Samsung AC 1.5 ton fraud

My name is Nandhini I saw sales add on fb for samsung ac When I Started chatting the seller was indian army first he asked me to pay 5000 rs from parcel then he went parcel office then again asked me 4100 for gst but i didnt pay him, for clarification i cross checked the details he sent about army parcel service,
Which clearly showed its a fraud...
In the name of CSIF officer he doing all these things..

Then we call and ask our 2000rs refund but he refuse and cut the call..