Chanel mini handle crooked?

I have the same issue too with a Trendy I bought. It was the only one, a bit crooked and had a little scratch. I ended up buying it but yeah the crookedness still bothers me a bit. :/ For mine, I noticed that it seemed to be crooked due to the turnlock possibly not being placed straight and slightly higher on one side horizontally, so when you close it, it makes the flap a bit crooked. If it bothers you now, I think it will always bother you as much as you try to ‘forget’ about it.
 
since it bothers you a great deal, I would return if you can live without it. It depends on how much you love it and how hard it is to get an exchange. IMO, the exchange, if you can find one, my have more issues.