It was a risk calling but I did it anyway. So what the girl told me is that when you report a card lost or stolen even though you get a new card number, the account and routing number (which is how the funds are actually loaded) stay the same and there's no way to actually cancel a card and get new account/routing number for an existing teen. This is why the loads and unloads show up under both the replacement card and the old one. Based on that it looks like the only way for me to avoid having loads count twice is to basically suspend or stop using the 2 replacement cards and order 2 completely new teen cards. Annoying because this is going to cause me to have to miss loads on 2 teens on this account and 1 teen on another account that also had the number stolen so that one has to be suspended and a new teen card requested as well.