Sales executive uncooperativeness

Great Eastern – branch:2,jessore road,habra,near 1no.rail gate 24parganas (north),pin- 743263.
We are disapointed forMr.Ripon (sales executive) uncooperative mentality.we bought 1ton Panasonic split ac on 6.4.16.
But the problem is till now installation part is not done.