Shocking story. And there is no way on earth you should let that outstanding £6500 slide. They sound like professional cowboys.
Are you on Pistonheads? I'd post the entire story on there (assuming you haven't done so already), they have a massive UK user base and that would really make Coys sit up and take a bit more notice.
Are you on Pistonheads? I'd post the entire story on there (assuming you haven't done so already), they have a massive UK user base and that would really make Coys sit up and take a bit more notice.