Its generally far more convoluted "I saw an ad on TV last month that product is $5 so I assumed its $5 and I have no idea whats up with this $6 charge" and both the retailer and the CC company totally have no interest in arguing about how the advertised sale you saw last month ended last month or how it you had listened to the entire offer its not $5 but "$5 with a purchase of $20 or more" or whatever. Look buddy you signed for $6 right here, clearly you knew whats up at the time, so why you bringing this up 30 days later?
Even funnier with something like a debit card. "Well I just swipe, I have no idea what they withdrew, I assumed it was about $15 like every other time I dine here, and they raised prices such that it was actually $25 without my knowledge, and now my bank is giving me $500 in overdraft fees because they can"
Sometimes duplicate charges get entered for whatever reason especially if the terminal isn't connected to the register and uses manual entry. So two identical charges from the vendor, can I see the two signed register slips? No? There's only one? OK then. You can't just delete duplicate charges because there's too many people go to the bar and buy two beers pay up and decide to stay for another two and pay up and there you go two identical charges both valid and both signed. Vs go to the bar buy two beers pay up go home, the printer jams or some drunk trips over the modem cord or whatever and someone hits a "resubmit all" button to "fix" it and now you got two charges with only one signed slip at least in theory they can clean that up themselves.
Even funnier with something like a debit card. "Well I just swipe, I have no idea what they withdrew, I assumed it was about $15 like every other time I dine here, and they raised prices such that it was actually $25 without my knowledge, and now my bank is giving me $500 in overdraft fees because they can"
Sometimes duplicate charges get entered for whatever reason especially if the terminal isn't connected to the register and uses manual entry. So two identical charges from the vendor, can I see the two signed register slips? No? There's only one? OK then. You can't just delete duplicate charges because there's too many people go to the bar and buy two beers pay up and decide to stay for another two and pay up and there you go two identical charges both valid and both signed. Vs go to the bar buy two beers pay up go home, the printer jams or some drunk trips over the modem cord or whatever and someone hits a "resubmit all" button to "fix" it and now you got two charges with only one signed slip at least in theory they can clean that up themselves.