richie,7,RA,spec C

I'm in a bit of a pickle
i've got a cobra alarm(7928/hf)
which works the central locking system
but its not ,and i can't start the car any advice .
battery is not flat i've re-synchronised the alarm but still nothing
i've had to have it towed from asda nightmare
1st one i've ever seen on a tow truck
and even more depressing is i might not be able to make the m.w.r.9
so if any of you fine gentlemen could shed some light on this little problem
i would b v.gr8full
richie