That’s fine a transaction, good to know it’s functioning.
But you cannot conclude from the fact that the fish arrived living that the “breathable bags” were necessary. They maybe of great use for oxygen consuming Rasboras and even other labyrinths that really need atmospheric air. But our Paros normally do not make use of their labyrinth. We sent them very often safely in normal fish bags. They don’t swim around in their bags, simply lie down below a leaf and wait. Of course you can use that special bags, but this is not necessary.