HELP!!! Magazine Jammed; loaded used film

[asumi]

Hasselblad 500 series magazine (I think made in '92).

I stupidly loaded used film in to the magazine.
I shot few then the crank stopped.
and the folder doesn't even come out of the magazine!
Do you know easy tip/trick to solve this?
I don't mind to ruin the film.

or do I have to pay $$$ to get it fixed????

Thanks,