EarlySalary — Unethical behaviour & use of abusive language

I am getting threating calls from different numbers & that are not on even recording lines. They called my wife & started using abusive language which is not at all tolerable. [protected] is the number from which my wife got a call & it is switched off now. i have sent numerous no. of emails to the company customer care email id but i am not at all getting any response.
please let me know how to proceed ahead as these people are harrasing me a lot.
i am going to give police complaint against the company as well as the collection agency. I need the details please.