Credit card

Hi. I have a credit card with SBI and am unable to pay the dues as I have lost my job. Somehow I managed to pay one EMI post which they have been calling non stop and visiting my parents place and behaving rudely, taking pictures, asking for my photograph etc. I have been asking them for a settlement option and they are not ready to provide the amount I am asking for. After one such incident my father had a severe heart attack. Even now they are not considering the fact that because of their harassments my parents are undergoing so much mental pressure and trauma, they are still sticking to the same deal. I am looking for a job and I am not finding one, I also have a child dependent on me. I have been paying the dues before I lost the job diligently and never missed any. The collection agent is threatening that he will put my picture on social media, tag all my family and friends and state that I am a defaulter and not to have any financial transactions with me. Please advise me on how to proceed further.