There should not be an interest fee for you if you pay off the balance in full every month. Secondly I will bet either obvious or hidden, you are paying those use fees that the places have to pay the card issuers. Some may just include it and hide it in the price and cost of doing business. Maybe the Amazons and Walmarts are big enough to be able to eat the cost of those fees.
No. In person or online, they charge a “processing” fee, for payment by card that covers their cost for accepting any credit or debit fee to them. I asked. My power bill can be paid from my checking account every month with no fee, automatically or manually.
Milton, FL, Santa Rosa County, on the outskirts of Pensacola. A rather quite large county. There are also other places I have run into that charge a fee if you pay by credit or debit card. That covers their expense fee they pay to a card company, for accepting a customers card.
A proven myth. Lemmings do not jump off cliffs. That goes way back to an old Disney movie, where some were unwillingly forced off a cliff for the storyline. Verified by Snopes.
Pure guess and gut feeling this time. Story going ahead is still pretty slow, and no big clues yet as to what is going on.