How can I replace the panel backlight on my Ford Ka?

The backlight for the panel with the speedometer, etc on my Ford Ka needs replaced. Someone managed to get the existing light out including the little plastic holder/connector thingy the bulb sits in. The bulb broke trying to get it out of this holder thing and now the holder is a little bit deformed so I probably need to replace that too. The only thing is I don't know what the plastic holder thing is called in order to buy a replacement so my question is what do you call this plastic holder and where can I buy one?