A/C stinks like mold

The smell started the week we bought it. I first thought there was something left in the car causing the horrible smell. I took it to get detailed. But the smell was still there. I took it in to the shop they said all cars made that smell. Something a bought condensation from the ac. They ran a "flush". I picked up the jeep and it still stunk. I asked them why it was given back to me and it still had the problem. The shop tech said we need to run another "flush", but it will take time. So he didn't want me to be with out a car for that long. So he is going to set another appointment. That never happened and the smell just gets stronger. So bad that my wife doesn't want my asthmatic daughter to ride in it. This jeep is new and it sucks. I would us stinks but that would be just stating the obvious.