Havells India — Air conditioner installation

I have bought a ac of llod(havells)15 days ago, till now after a lot request, lot of conversation to service centre and too many harassment, it is not installed. I have spent almost 1 hour everyday for calling the customer care, and issue is still not responded. As per their terms, It will be installed with in 24-48 hours after the service request. It has been 15 days after the request. till now nothing happened.