Extremely bad Service

My vehicle was sent in with a problem. After three days of being at the dealership, I took my vehicle and found the problem was not resolved, but was still billed for this. On discussing this with them , their attitude was unacceptable towards me and refused to take responsibility for what had been done I am still stuck with the same problem despite having had to pay for something that has not been resolved. Will now try another Hyundai dealership and hope I receive better service.