I ordered some tops for my son in a 10/12. When it came they were TINY, more like a 6/7. I thought it was just the brand so I exchanged for a different brand of tops and again, they were labeled a 10/12 but were sized more like a 6/7, and these tops are nonrefundable.
I did have some luck with ordering PUMA things for him, but I'll not be ordering clothes through them again.