Tell her that the clothes are better made and that you don't really like the clothes that come from Kohl's. Explain that you're old enough to decide what you want to wear, you're probably going to middle school soon right? That means you're old enough for a little independence, and you should also mention that you just want to try new things. I love those stores, so good luck!
Please don't buy clothes from there! Why would you want to look like every other kid? Trust me, Abercrombie isn't even "cool" or "in" anymore, if anything, you'll look even MORE like a little kid with Abercrombie, Gilly Hicks, and Hollister. Ask your mom to take you to Forever 21, Pacsun, H&M, Wet Seal, Delia*s, Urban Outfitters (if you can afford it) if you want to look stylish and not like a little kid. Your going to regret buying clothes that make you look like everyone else AND a little kid. Go on YouTube and look up makeupbymandy24 and madisenrosebeauty1 for really good fashion for your age that won't make you look like a little kid like Abercrombie and Hollister WILL do. X
Say you'll pay for all those overpriced brands yourself.
Saying that you get an important member of a Swiss Bank ;)
Tell her that. If she doesn't understand, start rebelling, because I wouldn't blame you.