Jio — unwanted calls

Address:

NEHU campus, Shillong, East Khasi Hills, Meghalaya

I'm receiving continuous calls and miscalls for the past 2 weeks from an unknown no. ([protected]). If i call the number back, the person would pick my call but won't say anything. I texted the person not to do so and warned him/her that i'll lodge a complaint with the police but still those calls and miscalls keeps coming. Can you please look into the matter and resolve the issue.