Used to work pretty well. Recently it's started trying to make new virtual cards for merchants that I already have a card stored on file for. So then I end up with duplicate cards, and the merchants that have the original virtual card stored try to charge the wrong card. Called customer support and they really don't seem to understand the problem since I'm not getting an error message. Why did this extension suddenly stop recognizing the virtual cards it already has on file? It's happening with every single merchant, every single purchase.