What to do when hair stylist does not listen to your request and ruins your hair beyond repair?

Talk to the owner and complain about the terrible stylist she/he has working at their salon!! And go in and show them the proof!! I got my hair butchered when I went in to get shaggy layers. It turned out terrible, it didn't blend, people made fun of me, and looked like a 6 year old cut it. We complained, and ended up getting it fixed for free by another stylist. And maybe try getting fixed somewhere else, if its just one unblended layer it can be easily fixed.