Epic Research — half refund amount need to be paid

Epic research have provided me half of the compensation amount and took 30 days of time to provide me another half and for today the 30 days of time is finished and they are give reasons that they cant provide the remaining half of the amount, i need my remaining amount of rs5000 back. I have tried every means to get my refund amount called them over 1000 times and most of the times they were not picking my calls and they were talking to me irresponsibly without the knowledge of whom are they addressing to. So i am requesting the consumer complaints forum to resolve my issue by talking to epic research and try to refund my remaining balance amount of ₹5000 by today or tomorrow and again i will never ever try to get in touch with that fraud and cheating company of epic research (*fraud*)