Ouch. That's just not cool. I guess it's tough for us to know whether he bought that item from someone else and didn't know it's history, or if he manipulated it himself. Hopefully, it's the former, I'd hate to see a fellow Canuck screwing others over. (Yeah, maybe I'm a little naive...)
Unfortunately, the seller knew very well what he was selling. I had spoken with him about this before, and I also e-mailed him while the auction was still ongoing to encourage him to update the description to reflect the fact that the figures being sold with the set did not originally come with the set.
These 1982 Sears Canada 3-Packs *only* came in 2 different sets (shown below):
You can read more about them here:
Sears Canada 1982 ESB 3-Packs