Not the best LOL Surprise Dolls

I bought this for my 9 year old niece, she was very excited upon opening it because the idea of these dolls was great, but she was disappointed. The quality was great as always, except for the HAIR PIECE. The hair itself was fine, but the separate hair pieces that are supposed to attach and detach easily, don’t. They go on the head fine, but fall off right away, so it’s hard for her to even play with. It also didn’t make much sense of how to put the hair on.