My grievance against the Prabhat Eligant

My grievance against the Prabhat Eligant
i) Even though they are nice normally, they are bad-mannered when question about the holdup or when you ask for the EMI as per the agreement
ii) There is no way you can escalate the issues because no one in their management cares about your complaints
iii) Other builders delay so it’s ok for Prabhat Eligant to delay is such a stupid explanation
iv) My project is more than 7 months delayed and they aren’t agreeing to pay anything
v) Most of the modifications I have asked for have either been over looked or not done, when I call them all they say is “we can’t do what we can’t do”. Interestingly other company projects nearby have done similar modifications