Hello! I want to know how I can get credit on those arcade cards. The one I have are those which you just place on the reader and it reads the card. Can someone please tell me what these cards called, nfc, rfid or what and please tell me if it’s possible to copy the data of the card. (Btw one of em has a cuircular coil inside and another has a rectangular coil embedded in them if this can help knowing the frequency of the cards)