Hi, I recently had a chemical hair straightening treatment applied to my hair, there is absolutely no difference, it was a little less curly for 2 weeks but now my curls have completely returned, I knew it wouldn't be poker straight but did want too see a difference, I asked the hairdresser for a refund but they only said no and offerred to do it again, I said no way, no more chemicals, am I entitled to my money back? Help? Cheerz p.s. I was charged a few hundred pounds for this treatment