PABLO Modern Mexican Cocina (Closed)

So basically we ordered the nachos and the waiter served us the “nachos” in the picture which turned out to be guacamole. Well they said it was Nachos so we ate, as normal as that. In the half of my meal i was suddenly informed that the guacamole was supposed to be for the table next to us but we already ate half of it 🥲at the end the waiter charged us the price for the guacamole and refused to charge the lower price i.e. the nachos price. It’s your mistake and how can u blame that on the custom