Hutch/Vodafone
Non Payment of security amounts

I am civil vendor who makes tower foundations for telecom companies in the state of Punjab. I did civil works very speedily for then Hutch when it entered in punjab for which I have not received the retention amount of the last four years for which my gurantee period is over. I have proofs how this amount has jeopardised my carrier and has reduced my turnover to half the amount. I had to take huge loans to repay the debts but the company is still not responding. Due to attrion new employee says that it is not our duty to clean the old fuss. Kindly show me the way how I can nail the nexus of this company.