Fake call later

Location/place: Khopoli

Name of company/service: L&T

I also got same cal later on 19 aug. and say lyk same inf. and also paid money in bank of india 9450 by mistake i cal dhanraj mehta on that no. 7351022725 and give me acc. no. of hr mahesh kumar
and by mistake i belive them
so today i get big tentn so plz frd wht should i do on tht condition because i pay 9450 in that acc.
so how i get that money plz give some solution