that's what I thought neat autos. Even if pads were worn out they shouldn't take that much fluid. He/She already filled up the brake fluid to maximum level. Btw neat autos Its very unusal for Rotors to go down, usually brake pads wear out. Rotors/Disk NEVER consume fluid, If the pads are worn out master cylinder will just push more fluid to lines which is why when the brakes are low you have to push brake padel all the way. Fluid returns back to the master cylinder when you change pads and compress piston. Adding more fluid clearly tells there is a leak in brake system.
And Junaid cheeee noise is from pads not rotors/disks. Most brake pads come with wear indicator that make noise when pads are 5-10% left. If brake pads don't have any indicator on them and they are making noise.. then it means pads are really LOW