Amazon India — [protected] order id- product return denied

The product was left on my doorstep when I was out of town and wasn’t informed on call as well. It was left at my door on 10th of august and i raised complaint on 19th which is less than 10 days but still they are not returning it. The product was not same as shown on the website. It should have been a 4feet by 6feet size wallpaper but they delivered in two parts that is not combined 6 feet as well.