Gtf Services — Fraud scams I have lost my money

I have got a call from Kotak Mahindra Bank scam.Hr Mahisharma([protected]) told me to pay 1950/- for Application fee and she told me your name is shortlisted and selected for 2nd round.Then next day I got telephonic round.(HR manager).And then 2 days after I got manager round through telephonic.Then Next day Manager called me.That your name is selected and you need to pay Rs 5000/- for document verification charges.I paid and then he told me within 8 to 10 days it be completed.Still now their number is switch off .Please help me.Manager number ([protected]).Please help me for refund my amount.