Mazda 5- sliding passenger doors wont open
 

Hi,

Ive had problems over the last 12 months where my battery keeps going flat, dispite a new battery and the car being checked at a garage the problem cant be found.
However, the battery went flat again this morning and since then I can seem to open either back passenger door. Ive tried opening from the inside and the outside and neither will budge open and its effected both doors.
I dont know if its connected to the dead battery(I should add the battery is now charged and they still arent opening) or if its just another thing thats gone wrong with the mazda5.
Does anyone know what may be wrong. I have children so I need to be able to open those doors.
Thanks