We have a long strip bulb that we replaced in our utility room and two of us had to get the bulb in either end onto the prongs.. soon as we did the light didnt work? It is fixed in properly but im sure its something to do with a small hole on the long light fitting which had a peice of plastic in it? This seems to have fallen through the hole and is loose??? I have a picture here any ideas what to do or how to get this working? as this is quite dark now in this room!!