Beymen business white jacket size 36

Beymen business white size 36 jackey with golden colour shiny buttons. Never worn waiting in the closet for a long time just came out from dryclean. The extra button Seems came off from it's plastic packets after dry clean so I put it inside pocket, pls see the last picture. There are yellowish spots on it. Please see 4th and 5th picture. May come out with a better dry cleaner. I'm US 4 it fits ok. Beymen is a very high end label pls check it from Google for pricing. İt was a present to me.