Asian Data Services — Asian data services

I have given them the work in 20 days and now they said to give 10% commision which is 3000/-. I paid them... After that they said that they are transferring the salary... After few minutes they were telling that they have tried several time but the transaction failed now I have to pay 18% GST which is 5100/- in order to get the salary. I have said them to give me back my money 3340 ( 340/- for ID card +3000/- for 10% commission amount which I paid). They said that they will refund in 7days.. This company is a fraud. I just want my money back.