please help

[seatibiza2001]

I have a seat Ibiza 2001 and my problem is that the battery went flat and i managed to get someone to jump start the car when I got home and went to lock the car I turned the key and nothing happened so I now have to climb through the back just to lock the door


any ideas what the problem is?

thanks all.

 

[sports racer]

Your battery is so flat the central locking isn't working.