Someone tried to k1 scam me lmao

These two girls were so nice and complimenting me and I didn’t even realize how many gift cards they had until the total was 1200$. These girls looked my age so I was already sketched out that they could afford that until she shows me a pretty legit looking credit card and told me to follow the instructions on the back, which were “press cash and then enter the total amount” .. I was in shock tbh and looked at the girl and shook my head no before turning on my light and saying my manager could do it, and then they said nevermind and left. If you’re going to try to scam a store maybe don’t look incredibly suspicious the second you walk in?