The fuel flap on mine won't lock. The locking needle moves out when I press the remote, but does not seem to have anything to lock in to. There appears to be a slot on the flap into which the needle should locate, but it does not appear to be aligned. Is there a plasic/rubber insert for the flap which has fallen out or maybe the needle is not long enough, although it seems to be. Very puzzling. Anyone else had the same problem?