Samsung pay at the pump

[amyf27]

Somebody on here head a link that shows you how to use it at the pump. In the past I had no issues but I have had trouble lately I'm wondering if I'm doing it wrong? I did it at the pump today and it said are you using this as a debit so I said no and then it said something about unknown card I wasn't doing it that regularly so I wasn't quite sure exactly how to do it