[cmurf]

We may need to help them by looking at the POS interface and make sure they're using/requesting debit for debit cards.

I suspect the POS defaults to credit. But I've never looked at any of the interfaces.

I know US Postal Service somehow detects my card is debit and then requests a debit transaction because the credit card pad asks for a PIN not a signature. So maybe some POS have an autodetect option.

(See also my other comment)