There was one fatal flaw whilst I was testing.. I didn't have the engine running each time!
Unless I started the car the phone remained disconnected. Soon as I started the car the phone connects!
I've now allocated each phone to their respective profile and it works like a dream.
Thanks for everyone's input & perseverance with me.
@simonjedrake that's great advice about keeping the profile unlocked for a few days.
Thanks all...
