Easy Solution — harassing for penalty by sending legal notice on mail and at home

Address:	Nagpur, Maharashtra, 440022
Website:	tne.bpoworks.in

Respected sir/mam,
For captacha work a girl sushmita more called me and after a long conversation she convinced me to do captcha online work but not all information given about work. No one cleared my doubt n just were saying that when our mam will call, u just say yes. But with their mam i again enquired about work but she cut my call. Then sushmita again call me and said that, "u just only say yes" in this way they trapped me in this work. But as log in msg was there work site will open at 6pm. Up to 10pm same msg was showing. Meanwhile i searched about it on google n surprisingly there were so many complaints about this work. Immidately i sent mail them that i will not do this work.
Now they sent me a legal notice n also calling and texting me. This is too much harassing me.
Plz help me.