HSBC Bank
Nuisance Phone calls

I am bengali. I do NOT know any Manoj Mishra at all; I get calls from HSBC bank every working day (unfortunately, they seem to work on most Saturdays as well) requesting me to clear their payments. Now the number they target belongs to my parents; my father is beyond 60 years, and is a heart patient, and my mother is just 4 years younger to him.

This has been going on for more than six months now. We called their help-desk, wrote e-mails to them and visited their Gurgaon branch, but nothing seems to stop their calls.

I wonder how to put an end to this.