Amazon - Paid money not refunded yet

I have received a job application for data entry operator from amazon company. They called me for taking my interview and said I have to pay registration fee which is refundable after completing you job process I paid ****/- and after amazon HR Took my interview and said me I have been shortlisted for the job and to proceed further I have to send them Qualification document details at mail.so I send all the details to the company mail I'd. Later on they said I have to pay ****/- for documentation verification. Said its refundable after document verify completes, so I paid that **** Amount and later on they said I have to pay more ***** /- for account creating after creating the account they again asked me to pay for a policy money *****/- they said all these amount is refundable and not to worry. But after my payment when I called them to get updates about my job location and joining later they not responding to my calls. After some time the number I am trying showing the number you trying is dose not exist anymore. So I got worried about the money I have paid still now no respond from that side ( company) plz resolve my problem and help me to get my money back plz