Indian Army — Demanding Amount Again and again

Address:

Indian Army Ambala Cantt

I was in a need of a refrigerator on an affordable cost. I saw a product on Facebook. I contacted the seller. Initially he requested me to deposit Rs. 1050/- for delhivery charges. i paid through upi. Then he asked for Rs. 3498/- for handling charges. After that he said that the delhivery got pending so now you need to pay Rs. 4199/- I paid Rs. 4200/- in installments.Then he said you need to pay only Rs. 4199/- transaction of Rs. 4200/- is wrong. I requested to deduct the amount from 4200/- Then I again paid him Rs. 4199/- After 1 day he says that you need to pay Rs. 3199/- for the return charges. I paid the same. Now he is saying that you need to pay the GST amount then you'll be getting your product in next 30 minutes. I refused to pay that and asked to pay my amount back. Now he is saying that the delhivery has been kept pending for next 72 hours. Please help me either to get the product or to get my amount back.
Sellers Contact No.[protected]
Delhivery Person's No.[protected]