In case anybody else is wondering and haven't gotten the email...
"Our vendor has let us know that there has been an inventory issue causing a backorder on the remaining units. We have worked with them in an attempt to remedy this situation, but as of now, we have no firm timeline for when the rest of our order will be available. As we have no insight into when this will be fulfilled, we have made the decision to cancel and refund all orders in this drop."
Somebody reallllllllly dropped the ball on this one. I'm personally not entirely upset and more baffled at ZUS as a fan of their car charger.