[Closed] Up to £250 to spend on a decent run about bike any ideas what i could get?

I want to get a run about bike for my girlfriend and have a budget of up to £250 to spend, i know for that money i cannot get anything brilliant.
Ive scouered ebay and found a few bikes but in the end they go for more than i can afford or they are pick up only and are up in Scotland. Ive had a look on Gumtree but you never know if the bike is stolen or not (same as ebay really)
I have had a look around the web and found the Carrera's in Halfords are a pretty god spec but just wondering if anyone has any other ideas of bikes i could look into getting and if you know where they are going cheap id appreciate any info.