We have had an embassy mix up two passports, so we received one and someone else received the one we were expecting. Their trip was in three months, so they had no urgency, but ours was in four days.
We ended up tracking down the other person while we looked into our options. At one point, we were about to fly from Toronto to Ottawa and back in order to pick up the passport ourselves. In the end, we paid them to send the passport on a flight with a courier, so that at least I didn't have to go.
We got the passport at midnight and left for the airport 10 hours later.
Good luck.
You might be done with people, not the internet.