Dont get all caught up in the check'n the credit card game, to be honest I have done that, but every LE tag but one I found out by mail and it was alot less stressful on me wondering if when my credit card got hit if it was the right unit or which person ect and so on. The way I look at it you ether have the tag or you dont, and trust me if you have THE tag you will spend countless hours not being able to sleep at night thinking about it! Good Luck