Salon Disaster

They should be willing to fix it themselves, though this may or may not be the case by now. When you see someone has botched your hair, you should speak up immediately to improve your chances of getting it put right.

They're not going to pay someone else to fix it for you.

If you don't trust them and don't believe they can do it right (you may be correct here), you're stuck between paying somebody else or trying to fix it at home.

They should be willing to fix it themselves, either the colorist who botched it or another in the salon.