Landmark Online India / Landmarkshops.in — received a wrong product, company is not resolving the issue in time (since december 19, 2019)

Purchase through max online shopping site on december 13, 2019, a buy1 get1 offer worth of 999 inr. The order consisted of two products within and the no reads as [protected]. Receiving the order by december 19, 2019, but it was a wrong product i received with my original order no on the parcel label with my address, but the product inside carries a different order no [protected] of another customer. I raised my concern regarding this to the company, but they have not responded me with valid response