I had to mess with an extremely unfriendly seller ...

I had to mess with an extremely unfriendly seller - After leaving the shop, I noticed that the packaging of the purchased item is damaged (probably by falling down). I was worried that the expensive device in the packaging might be damaged. So I'm back in business to tell the seller my concern. This has extremely annoyed and snotty reaction. He even claimed that it was me. Finally, he tore the cardboard from my hand and cut the packaging. Since the object was undamaged, I was addressed again patronizing instructive. Never again will I shop there. Complaint was sent to the market - no reaction. No-go.