I received a message from Sprint 9099 saying that my auto-pay change was successful and stated the last 4 digits of a card that was added. The weird thing is, the card that was described is a new debit card that my wife just got within the past few weeks. Neither of us have gone online or has called sprint to give them this information! How can sprint get access to this? I've called and the only answers they can give me are that we added it, Sprint Zone updated it, or an app called Card updater did it. Neither my wife or myself have an app called Card updater. I have the HTC One M8 and my wife has the LG G3 if that makes any difference. Thanks in advance for any and all help.