Help pleasee

Hi there got a bit of a problem with my disco , lost the key to lock the doors and if the alarm goes off you have to lock it and unlock or it won't start , and gotta change the battery 9 times out of 10 after disconnecting battery my alarm goes off and can't stop it unless I lock it and unlock it again, anyone know a way round this?? It's 1993 k reg disco, thanks

Rip the alarm out!!!!!!

New key - with the details on the V5 you might be able to get the key code, but might mean a trip to the main dealer so phone them first to see how much it would be ?

Ohh ok but its not a chipped key. Haha would it work ripping the alarm out??