Pepper Fry — denying repair of the bed in spite of warranty

I ordered a bed from pepper fry around 3 months back. Around a month back I started using it and realised in a day or two that the plank fixing was not proper. I reported the issue and pepper fry sent a carpenter to check. On checking Carpenter reported that the plank was not fixed properly as some screws were missed. Due to this snapping of the plank, some part of the side plank is damaged. On reporting the issue to pepper fry I requested them to fix this as this was not my fault and this happened. Now pepper fry is not accepting it saying that it falls under wear and tear category.
First of all I am not sure how it falls under wear and tear category as I didn’t even use it. And frankly speaking how can the bed be worn and torn within a span of 3 months only? That means the quality of products from pepper fry is like that.
On top of that customer care support is pathetic where in they are not helping at all. I am not sure where to escalate as it is online store.
I am extremely disappointed with their service.