Star world wide group - Employer delaying exit formality

I joined star world wide company in the month of sep.. They offered me ** as my take home based on which I agreed to join them later which they offered only **+k when I questioned them about it they started giving excuse. After joining there was no proper training given. Most of time I spent my days watching movies n videos on you tube. There was lady Mary who was my reporting manager who never took any effort to train me. She was worried about about me learning the job soon which will affect her. She used to always fight with all the employees in office and scold the people using idiot, rascal. The office was one km away from the bus stop and we used to ask any staff to pick n drop us. When I call someone to pick me and drop me Mary used to come in between n order me to take a drop or pick from other staff. If someone doesn't do anything which she says she used to tell head office which we never added in the statement. Like , once in her absence I had a doubt where in I called chennai branch n clarified the doubt next day she raised her voice on me for surpassing her n told head office that I'm uncomfortable with her which I never told. After all des i feel sick, where in Doctor advised to take rest. I sent the medical certificate to head office to approve the leave which they refused and verbally they told they will approve * days of leave but while writing an email they approved * days of leave. Later which considering my health I resigned the company. Since I wanted money for the medical expenses I joined another company. I had my previous company pf amount which I transferred to star world wide company which they need to accept so that I can withdraw. I spoke to the hr he told till I complete the exit formality he cannot do that. I sent a official mail for which no one replied, next day I went to office later I got to know assistant manager is on leave. I asked Mary why no one replied me when I sent a mail she replied carelessly. Even HR did not respond proper