This man called Rahul dewas/Rahul sharma replied to my olx posting about a monitor and said that he's interested, that he runs an electronics shop and that he's willing to buy it as soon as possible. Then he tells me he can only do UPI since his GSTIN is linked to his account, sends me a qr code to "receive payment" where he's requesting the same amount instead. He tried to justify it saying i made a mistake wait let me correct it, then deleted all his chats and blocked me when I called him out on it.