Firestone Complete Auto Care charged for unnecessary work Springfield Massachusetts

I was working temporarily in Springfield, MA in Sept. 2019 when the brake warning light came on.   I added brake fluid but it soon came back on, so I went to the Firestone shop to have it checked.   I was shocked later when they recommended over $2,000 of repairs, but I only wanted the brake fluid leak addressed.   They replaced rear rotors, calipers and brake hoses on both sides.   In total I paid $1,068.18.   But they recommended the front brakes also be addressed, so three months later I took it to another shop in my town and was told the brakes were fine. 

 I reviewed my records and found the receipt showing that I had paid another mechanic $429.58 on Sept. 4, 2019 to replace the rear rotors and pads, so how could they possibly require new rotors just three weeks later at the Firestone shop?   They later claimed that they made a mistake, it should have read that they removed and "cleaned" the rotors!!  How ridiculous is that?   The previous shop had also said that the calipers were fine, so I'm sure that Firestone is engaging in fraud.    I would never go to any Firestone facility in the future, they are not to be trusted.