Monro Muffler Brake

On 05/28/2020, I took in my 2003 Ford Focus to the Monro Muffler Brake on S. 76th St in Milwaukee, WI for a continuous loud noise which would only quiet down when I pressed the breaks. Robert is the person who drove the car in to be checked and he said it sounded like the brakes. After my car was looked at, I was told that it was the caliper on the driver's side and it would cost $327. I left my car there and, on my way home, I received a call from Robert telling me that now that they took the brakes apart, they noticed the rotors on both sides needed to be replaced and that they could give me $50 off and the total would be $512. When I picked up my car, I paid the $512 with my debit MC. Within a block of leaving the shop, I noticed the noise in my car was not any better then when I took it there and was, in fact LOUDER! I went back in and told Robert the noise was still there. He looked at the car again and said it needed another part and he would give me a deal and only charge me $10. I said I didn't feel like I should pay anymore because the problem I brought it in for wasn't fixed and they, in fact, handed me the keys and let me drive away without ever "mentioning" this additional part and clearly no one actually road-tested the car or this would have been noticed and/or addressed. He called the person who was training him and that person told me that you wouldn't know it needed the other part until the caliper and rotors were fixed. I let them know that I fully understood that but that for over $500 I should at least have gotten the original problem fixed and certainly shouldn't have been allowed to drive off in a potentially unsafe car that needed an additional part. Why didn't they check and why would they let me take the car if it was still making the same noise? I was told at least 3 times the same thing...that they wouldn't have known until they fixed the caliper and rotors but that doesn't explain why I WAS NEVER TOLD ANY OF THIS UNTIL AFTER I PAID, LEFT AND WAS FORCED TO BRING THE CAR BACK! They would never answer this question. Why did they call and tell me it was finished if it was still clearly making the noise and still clearly needed an additional part? I left at that point instead of going around and around about it. So after $512 I still have the same problem I had when I went in and I am not even sure if my car is safe to drive. I just want the problem fixed and I don't feel I should have to pay any additional money to have it fixed. If it is not fixed, then I would like a complete refund since the original problem for which I brought the car in for was not fixed and I will be forced to take it elsewhere and have it fixed which will undoubtedly cost me more money. Additionally, I would like the original parts placed back on the car.