Hi, Im after some advice. I took my car in yesterday for a full service & repair. The repair i needed was a chirping noise which i assumed would be a pulley. He called me with the problem he had diagnosed and a price i was happy with and the work went ahead. I picked the car up and replacing the chirping was now a full blown squealing. He advised he had got some oil on the belt and that it would stop soon, I took this as he as because he is the professional. The squealing didn't get better it got a lot worse. 12 miles later the car judders and i pull over the belt is there but hanging off plus the alternator pulley also. The work carried out was supposed to be a tensioner pulley although the receipt says ALT BELT IDLER he came to my home and picked up the car took it to his garage to change the full alternator he has told me this will be £107+vat (final bill £128.06) & the work completed will be free and i can 'pop' the money in when i have it. What my question is have they caused this as i had no problems with the alternator previous to this and they even managed to fiddle with the car and drive it 3 miles back to their garage to fix it. In my opinion they have put the belt on wrong maybe too tight or in fact the oil on the belt he admitted to getting oil on has caused the belt to slip and in turn killed the alternator along with it. Any help as to where i can go from here will be greatly appreciated. Many Thanks, Jodi.