Nexgen Data Solutions — Not refunded my money/they have not paid salary

They told to type the project 62 pages. After typing they told to send work by email. They told me to pay tax amount of 6000 to receive your salary. I paid the amount. But after that they are not responding to the calls. And now again they are telling to pay 3999 to receive salary. Make sure that they will refund my money. And the excutive who contacted me is Malathi and her number is [protected].