2021 TOYOTA COROLLA Suspension Problems

I have been taking my Toyota to Sun Toyota for routine maintenance and inspections. Upon today’s inspections they are claiming the battery looks like it leaked on the axial, some of the undercarriage components look broken and rusty. Possibly needing replacement. The overall car is less than 60k in mileage so that seems odd to me. I also brought the car in at 45k and they made no mention of these issues during that vehicle inspection. I asked about my brakes and braking issues. I do not slam on my brakes and the technician said I should stop braking too hard. There is noticeable wear now on them. I asked them to change them at the previous visit and they refused saying it did not need it. I am concerned for my safety and lack of care at this sun Toyota.

While driving approx. 35-40 mph driver impacted front left side with a stop sign post . Causing very little body damage but completely ripped the control arm out of the sub frame which caused an unreasonable amount of other significant damages . The axle broke off at the transmission . These 3 parts alone costing almost 2500$ plus labor to repair. It ripped part of my bumper cover which had to be replaced and dented the fender which is being repaired . Had the cars subframe held up in what should have been a minor incident none of the other parts would have been affected the way the were. I had the car inspected and aligned at the Toyota dealership and was directed by two employees to file this complaint. They too felt the sub frame shouldn't have ripped apart like it did. Had I been involved in a collision...

REAR SUSPENSION SPRING WAS NOT IN THE RIGHT SPOT. IT WAS LEANING ON MY FRAME. MY VEHICLE WAS STATIONARY.