What an ugly acronym, EFTPOS. I think it stands for Electronic Funds Transfer at Point of Sale. (This is correct: although I dislike the acronym so much that it took me a few moments just now to muster to type it into Google to confirm.)
Or something, I can’t even bring myself to care enough to Google it.
“Credit or debit?” is a cute little close-of-transaction phrase. “Debit” sounds like it should be a diminutive form of “debt,” which is charming although I guess also incorrect since the point is exactly that you are using your own money to make the purchase rather than somebody else’s.
Jeremy’s winner: debit (free and clear)