National Insurance Company — claim settlement

Unfortunately my car met with an accident and i had to get it repaired in a non cashless mode and since 6 weeks i have been waiting for nic to settle my reimbursement. I have tried numerous follow-ups and leave alone settlement the people from nic do not even bother to ack and respond back. My vehicle # is ts07fc0603. I have even written emails to their head office contacts and still no use. They simply sit on it and fare zero on customer service.