Mad & ****ed with their service! Disgusting!

Bosch service was a -1 star. I have never been so ****med & overcharged. Took my car in end of June for brake pads & disc replacement & two months later down the line they're making a squeaky noise again . Took it back to them they said they need to "adjust them" and there is dirt. I don't understand why it has to be adjusted when the car has been working for years without a single fault only after it went to them it started giving me problems . The labour amount was ridiculous, the people were very rude , her name was Christine & the guy was Tyron Naidoo