After replacing the brake pads and rotors, there is a noise when braking?

The dealer told me it was time to replace the back pads and rotors. Went to tires plus and they replaced the back rotors and pads. There was no noise prior to this. Then my brakes started screeching. Went back to Tires Plus thinking it was my back brakes. They said the front brakes needed to be replaced. I then replaced the front rotors and pads. The screeching was still there and was maybe even worse. I went back to Tires Plus again. They told me that an inferior rotor was put on my front brakes. They needed to put a better rotor on my front brakes. They replaced them with new rotors. Then when I was driving around on Saturday, I started to get a very bad clicking noise when braking at slow speeds until coming to a full stop. Some screeching but not like it was. Tires Plus told me it was normal and that it would go away after driving 200-500 miles. So far I have gone about 200 miles and it is still there. Is this true that it will go away? Is this problem normal?