I will have a look shortly. We didn’t assemble it, it came ready assembled.Can you post a picture of the tap assembly in the order you put it together and check each side of the hole as there maybe a shard or small blob of glass as I seen one like that in the same store.
edit: just dis-assembled and re-assembled exactly the way it was. I’m leaving it for a while now with a small dish underneath it to see what happens. It normally leaks about a tbsp a day.