Talk to Fiat. I think the later cars can have a new red key programmed. (there was a big outcry about the old red key system and I'm pretty sure fiat changed it)
If you look at your blue key and it has a triangle with a halo around it on the shank and no number - you need a red, master, key.
If your triangle and halo has a 2 above it, thats the series 2 system and you do not.
I have never seen a Bravo/a or Marea with a 2 by it - so the liklihood is you need the master key!
it was VP, i know what you mean about them being robbing twats, cost me £77 for ht leads. i normally go to lee & turner in bridgend there much cheeper for servicing.