Did us wrong and is getting away with it

I have a problem with my car battery thats not charging right, aswell as my radio switching of when i press in the brake and asked them to check. They said that a starter wire was lose and my battery terminals was to short and they fixed it and added a earth wire. Cos the earth wire on the negative terminal was sort and not making contact. They told me to come fetch my kar and pay... So i did that just to come home and when i had to go again the car went crazy was flikering on the screen didnt want to start, not even theremote wanted to work on the car. So i went to them and said there was nothing wrong with my car i drove it to them and know it doesnt want to start they must comefetch the car and make there mistake right. Waited till 16h00 the afternoon. When they fwtched my car and didnt hear anything for an entire weekend intill my hubby called and asked whats going on. They said it was a wire on the negative terminal.... But it was replaced then the first time we had the car their. Or so we thought. My car is full of scratches bumps the wipers doesnt work the clutch is bearly everything that had no problem. The reception lady was rude and disrespectful due to we arent gonapay for something they already fixed. And she said red flag we must go. So know my car has the same problemit had bwfore we took it to them and more... Now the clutch bearly works, the wipers doesnt work and my car has dents and scratches all over. I took a video of my car before it went and they are disrespectful charged us for something thats not fixed and caused us more problems. And refuse to make there mistake right.