Just an update Peugeot rang me back today saying that they have traced it to being the battery as the problem, as they've put a new battery in and its now fine, though of course it would be fine as the battery is new and has charge its only after a few days you would notice if the car wasnt charging it properly, hopefully they have thought of this and done some sort of test. They said they will put my old battery on charge and do some test on that to see if it is buggered.
The thing i did find weird is that my car went in Friday for a oil measurement invalid problem and they said had adjusted the dipstick, but they changed that story when they rang me tonight and said they had done a software update and that my dipstick still needed to be adjusted apparently, which they are going to do for me. Which is weird as if i my car hadn't of not started i would have never have taken the car back down there so wouldn't have known the dipstick still needed doing. starting to wonder if its all linked and they have mucked up some where.
I asked if my battery was under warranty which the guy said technically no, but they may be able to wangle something for me so i get it under warranty. Which is good news if they can and really nice of them, though the skeptical side of me thinks maybe they know they caused the battery failure Friday and maybe that's why they are going to try wangle it for me, but who knows, fingers crossed i wont have to pay a penny