Did I get scammed?

Was really excited for a NKD when I got this Tanaka x Kyuzo bunka but I’m a bit worried. I bought it second hand but it was stated as BNIB. I cleaned it with soap and water and with barkeepers friend and I still see this hazy finish along with spots all over the knife. I’m worried this is previous pitting and rust that was cleaned off the knife. Anybody have any thoughts?