I went to Halford autocentre Finchley London to ask specifically for my slave cylinder to be changed. After keeping my car for more than a week they asked for ?865. which I paid. The second day I found Istill could not get any gear and asked for full refund. They first gave me a fake invouce showing they changed both the slave cylinder and master cylinder. They then said they would only give me half refund because they changed the master cylinder. I said both AA and RAC advised slave cylinder was the problem and that was what I asked for. They said the clutch also needed changing and I would need to pay ?300 more for that. I decided to go elsewhere but they wont give full refund.I went to Perivale where the mechanic agreed with the RAC and AA that nothing was wrong with the clutch and that the slave cylinder was the problem. He changed it and gave me the defective slave cylinder as evidence. I still wamt my full refund back and need to collect ?465 from Halfords. I also want my loss of earnings paid for the three weeks the whole ordeal and deception lasted in which I turned away client after client and in which the car broke down while in use by clients who never came back again because of loss of trust.