Crap - well, I'm a bit shocked. I never thought that would be the way this would be handled.
The only thing I can think (and it would be a HUGE stretch), is if it wasn't really the manager calling back, but someone else (perhaps the guy who treated you like crap).
The other side of me makes me think that I'm trying to give them too much credit, and it really happened, I'm just a bit shocked, because it has been the exact opposite of any experience I've EVER had there (that's going at least every two weeks for the past couple of years).