Brake Disc Caliper problems of the 2019 Toyota RAV4

On 01/10/17 at 11656 miles I reported a burning smell present consistently for several months. Lester glenn Mazda said they couldn't detect anything. I went for service 19may 18 and was told that my rear brakes were bad. Report I have from that service shows red for rear and green for front brakes at 36865 miles. 26 may 18 Mazda lodi told me all 4 brakes and rotors were bad. I asked how the front brakes were bad 1 week afterlester glenn told me the front brakes were green. I was told that most shops have inexperienced people but lodi has all their people trained as master technicians. I was told lester glenn probably didn't measure. Lodi said rears were really really bad and that I should replace all 4 brakes and rotors and all 4 tires for even wear. I was told car was not safe to drive without the work. I got the work done. Repairs were completed at 37354 miles. 24may19 I am told all brakes are good. I call 06 Jun 19 and complain that I am hearing squeaking. I call& I'm told that it's probably nothing but best to see if it persists. Sound persists. I go in24 jun19 and complain of noise and vibration through steering wheel and floor board. The service manager drives the car with me and hears the squeak faintlybut says he doesn't feel the vibration and that the brakes are working well. I let them check and am told the left rear caliper is seized. The caliper went through the pad to the rotor and rear pads and rotors were replaced. I am still hearing squeaking and I fear it the right rear caliper since it wasn't changed. I've changed my rear pads and rotors twice in 1yr/20000 mi. I found out my car is affected by TSB r052/16c (04-001/18) and 04-002/19. R052/16c resulted in a production change in rear calipers starting in September 9 2016. Mazdausa won't acknowledge that their dealers should have replaced my rear calipers or that they should have issued a recall.