Bad service

Bad service
I will tell you why there is bad service. I put my car all day, I paid 300 euros for nothing and he told me we do not know what the problem is. My car had no brakes, no power steering, no security. How can they take money when they have not done anything? I took a normal mechanic who repaired it by changing an abs sensor. We talk about the efficiency and the interest of putting his car in a garage known as this one just to get hold of the wallet for free. That's why I say there is bad service. I have the bills for proof if you want