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Originally Posted by lrjohnson
I use the same physical card as both debit and credit. As debit hits it hits immediately, and credit doesn't always. I can then enter my PIN or sign.
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OK, let me know if I've got this right (I'm a little slow sometimes): You have a checking account and you have a credit card account. You have one actual card for both. When you use it as a debit card, it deducts the money from your checking account. When you use it as a charge card, it posts to your credit card account. Are you always asked (by the clerk or the machine) whether it is a credit or debit transaction? What happens (how is it processed) when they don't ask?
I have only a debit card. Most times I input the pin, but sometimes I am asked to sign. By signing, I am not turning it into a credit transaction. So how is the distinction made when you use your dual-purpose card?
It is so rare now for merchants to even look to see if your card is signed, never mind compare your signature to another ID. I've got "check ID" written on the back, but that's seldom done as well.