You may want to double check.. My debit card is a pure debit card with withdrawl coming from my checking account.. Even so I run it through or say credit and it goes through that way... Perhaps your bank is not that way, but I know of so many that are that I would be surprised to find one that is not... Mine I use this way all the time... some stores require signature, some don't and so on, but it does still work this way...