ok long story short, shop screwed up break job or just didn't do it. they say defective pad resulted in premature wear.
ok the problem at hand, pad disintegrated and I had metal (pad) on metal (rotor) which resulted in the rim being covered in iron dust all weekend during the snow and now its covered in rust.

is there a safe way to clean it without damage ??

 

https://www.autogeek.net/how-to-clea...um-wheels.html

 

I find the best stuff to use is acid... I use it for my tool box especially.

Stuff I use is Aluma-brite. I get it by the gallon.

Same stuff heavy duty truck and trailer detailers use. Especially for staxx and milk carriers.