Scammed by the dealership

I couldn’t shift gears and they were grinding so I took my ‘13 Elantra GLS in to have a look over. They told me the tower was broke and all sorts of other things and recommended a new tranny. So, I dropped it myself and there was nothing wrong with it. They also said I needed new shift cables. They were fine! The issue was THE MASTER CYLINDER I did NOT need a new tranny.