is there any amount of it sticking out of the socket? If so, you can possibly use a FRESH carrot, or other "hard" vegetable, mush like you would with a light bulb that has broken with the contact end still in the socket.
If you open the casing, you may be able to use a small pin to push the metal out through the center hole (if there is a hole and it's not a sealed connection on the interior of the unit)
Next thing is to find some small needle nose pliers, or a precision screwdriver, the idea here is to apply pressure to the sidewall of the pin that is stuck (from the outside of the machine)
If you have pictures of how it is stuck, that would help. Just email them to
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