Data Entry Solution — asking me for rs 6885 after I already paid rs.3440 and denying for refund when asked

I was looking for a data entry job for sometime to earn some money being a student. I got a number from quikr.com after i registered with them. I texted on whatsapp on that number and got a reply for job offering saying i had to pay
590 rs to get the job. First i asked for payment proof but they didn't reply for a few days. Initially they did and sent me some screenshot of people being paid. I wonder if that was legit. They offered 16000 rs plus incentive of 3500 if i typed a project of 80 pages in a month and with incentive if i could do it in 10 days. So after paying 590 i get another text out of no where saying i have to pay more 2850 rs. As documentation fee. First i was reluctant to pay and asked for proof of agreement paper or bond that they promised. They told me to wait for 30 mins and after 1 hour, sent me the screenshot of typed agreement, when i ask why not on stamp paper they say it will be given after payment, so i believed them again and made the payment, but the again out of no where i am asked to pay rs. 6885 or more as a final step, then i was sure that it is a scam, when asked for refund, they said they can only refund on second salary which is after i pay that much money. When asked again and again, they deny. When i try to call them, its switched off, wont receive calls on whatsapp. Please i want this issue resolved and my money back.

Phone number i was being contacted: [protected]