Thanks for your reply mate. When I went home I did the following but it didn't work.
Enter master code.
42.1 (Program users)
Select a user account and 'ent'
Select option 5 (RF Fob)
Press '*'
Then press any key on the fob to populate the serial number
The above all worked fine but when I pressed the panic alarm button, the lights would flash but nothing else. With regards to selecting a user account to assign the fob to. I created a new user and assigned the fob to that. Is that right? or should I have selected an existing user and assigned it under them. I have also replaced the batteries so I know its not that.
Also looking at option 50 (engineer), there is a hot key option. Does this need to be enabled?
Thanks in advance