Are we to take it that two PCM's were bad? I find this hard to believe, I suspect the first dealeshipr never changed it, but had you pay for it. I am a sceptic at heart when it comes to these people, a new form of highway robbery, licensed as well.

Always ask to see the item that they took out of your car, keep it if you want to, but at least look at it. If they cannot find it, then wonder what really happened.

Good luck in the studies.