Berger Paints — Wall paint started flaking /peeling within a month of painting

I entered into agreement with Berger Paints via contractor Sougata Paul ( mob--[protected]/[protected]), on 16.11.19 to paint the inside walls of my flat at 10, Sitanath Banerjee lane, Flat no.-102, Block-E, Shibpur, Howrah-711103. The total consideration was Rs.57000.00, including Anti dampener Wall Shield . However, immediately after completion of the work, flaking out of paints from certain areas of wall was noticed. This was brought to the notice of the contractor on 29.11.19. He assured me that it will be taken care of in due course and full payment was made on 29.11.19 itself. However, till date nothing has been done, despite repeated reminders to the contractor.
I feel that i have been a fool to have made full payment, though it was the goodwill of your company that prompted me to do the same. I never thought that I would be duped by the contractor of a reputed company like yours.
I request you to look into the matter and arrange for prompt redressal.

Regards,
Saikat Sengupta