Asian Paints — Redeem of my painting work

Address:

Kolkata

Asian paints Beautiful homes had taken End to End interior work of my flat including painting/wall paper /stencil work.
1. In painting work they didn't deliver the finalised wall paper and stencils work which was agreed in the quotation. They didn't perform the base preparation work as well before the furniture work of the flat.
Am still following up for the refund of those line items including gst. They promised me the refund but no refund done in last 2 months.
They are pushing it to each other in the internal team for the refund.

Please help to get the refund.