My mum has a 2004, 54 plate Micra 1.2 S with central locking. She went to it today to get it out of the garage but it didn't open with the key fob, so, assuming that the battery might be low she tried her spare fob. That didn't work either so now she has a car that she cannot get into, can't move and can't do anything at all with. Obviously she either has a flat battery or a fault with the central locking. The AA have recently been messing her about and have recently taken her complimentary Home Start off her although I don't know how they would be able to help anyway. Suggestions please.