RBL Bank — Harassment calls

I dont have any account in rbl bank account still people from rbl bank keeps on calling me. I dont know from where they got my number . They are claiming that i have taken the credit card and didn’t paid the bills. First of all in my entire family no body has credit card from any bank nor they have their account in rbl bank . People from this bank are abusing badly calling 100 of times from different numbers even i blocked them.
I m sending the ss that these number are calling again and again and abusing me.They are claiming that they are from rbl recovery branch pune.