I bought a bottle of Cervaro della sala 2006 (A 12...

I bought a bottle of Cervaro della sala 2006 (A 12-year-old wine if aged well can still give a lot of emotions!). The employee who helped me was really nice. The fact is that as soon as it is uncorked I notice the opaque orange color, oxidized to the point of being undrinkable. Ruined the evening, the next day I go back to the wine shop to ask for a replacement or a discount coupon on a future purchase. I am rejected, even abruptly, by the Lord of a certain age in the cashier.
I understand that it is no one's fault, but from such a renowned wine shop and in any case considered one of the best in Rome, it is truly disappointing not to have a remedy for these situations, even a minimal one.
Moreover, the gentleman of a certain age who "welcomed" me was so rude that he did not greet me despite having repeated "thank you and goodbye".
Bad experience. I will not return!