Essar Steel — Esser sheet complaint

Address:

Village guruwali tarntaran road, Amritsar

I have installed essar sheet in 2016 ( area 85*30)(135×10)after few month i saw some rust and hole on the surface of sheet and i contact with your dealer where i purchased sheet and asked all problem with detail .but they cannot hear our problem . I have visited there store many time regarding this problem .
Sheet is totaly damaged, all surface of sheet damage with rust and hole.
I request to you please give the proper solution for this problem