Xiaomi G11 Vacuum / Sale Of Used Product As Brand New

On August 24, 2023, I purchased a G11 upright vacuum cleaner from the Xiaomi store at İzmir Westpark. During payment, I noticed the product box was slightly dented, so I asked the sales consultant if the box had been previously opened. The consultant assured me that the product arrived like that from the warehouse, and proceeded to open the box, showing me that the accessories were in their original packaging. However, upon inspecting the product at home a few hours later, I found dirt in the dust compartment, signs of heavy usage on the attachments, and scratches and dents everywhere. I contacted the sales consultant to request a product exchange. After seeing the images I sent via WhatsApp, the consultant acknowledged that the product was indeed used. The next day, they informed me that the product was out of stock and offered a different brand of vacuum as a replacement. Despite insisting on the same product, they mentioned uncertainties about stock availability over the weekend and proposed to address the matter on Monday. The company's employee sold me the item as 'brand new' despite knowing otherwise and seemed remarkably nonchalant about resolving the issue. With stores open on Friday, Saturday, and Sunday, and courier services operational on Friday and Saturday, it's inconceivable that they couldn't assess their stock situation within four days. Xiaomi Turkey appears to be stalling and trying to dissuade the customer by withholding a defective product. I demand a replacement of the faulty item with a brand new one