Indian Army — someone cheat to tell himself indian army

Dear sir, i am sujay acherjya. I saw a add on facebook about scooty selling. So i text him and he said that he is from indian army. He transferred from kolkata. That's why he wants to sell his scooty. So he ask my pan card, aadhar card and photo. I send him. And the deals is at the time of the delivery i have to pay 10000/-, then 1month later i will pay 12000/-. Total amount is 22000/-.
But at the morning he said for get pass i have to pay right now 2150/-. So i told him rest of the amount i pay him after delivery at my home. Then at 11.20 am someone (Addressed him as a delivery boy) call me and told right now i have to pat 6999/-. I refused this offer 1st time. Then he said, "i am a army man, u cheat with indian army. Now u see the power of indian army". Then i call the owner and told the scooty. He told me the same thing. Then again i will pay 3000/- discussing with him. He said he now the delivery will be able. After sometime delivery boy again called me and said why i pay 3000/-. I have to pay 6999/-. Then i cancelled this delivery. Then owner call me and say i cheat him, he will take action on me. And abused me several time. The name of the owner is pramil kumar, mobile number is [protected]. Delivery boy number is [protected].
Sir my question is, am i cheat on him or he cheated on me? Please solve my problem sir. I am from a very poor family sir. At this lock down time i don't have any job. Request you to please look into the matter.