Why am I accountable if P2P seller tells me to cancel it for no apparent reason claiming they published wrong ad ?

Hi, So this has been occurred to me a number of occasions. As soon as attempt to purchase an inventory in P2P, the vendor claims he posted fallacious advert and needs me to cancel. When he posts once more, he tells me the identical factor. Why am I accountable for this even if i choose "drawback with sellers cost technique resulted in unsuccessful cost" ? Binance provides me 3 tries to buy P2P per day. After that you are banned for the remainder of the day. My suggestions is 100% but on account of these sellers, my completion fee is down the drain. Any insights ?