Bajaj Finserv — loans recovery

I had taken personal loan amounting to 1.5 lacs for a tenure of 3 years. I paid 30 emis but couldn't clear entire loan because of sickness and financial crisis.in december 2018 i entered into settlement agreement for 32800 to be paid in two instalments and accordingly paid 16400 for the first time in january 19. However i couldn't pay the remaining amount of 16400 in time because of illness and financial crunch due to unavoidable reasons. I requested to them for the grace period but now their recovery team has started calling me again and again. I am not able cope with the stress of replying them because they are abusive and just don't listen even though i have asked them to initiate legal action against me and that i don't intend to default. Since i stopped responding to their continuous calls they have started calling my friends and relatives whose contact details have not been shared by me. They are just trying to humiliate me and at the same time threaten my friends about contacting their employers and thereby putting their job in jeopardy. My cousin got 50 calls on sunday whereas a friend got 26 calls while on job and not in a position to respond.