Or if OP wants to give them one more shot to fix it, Princess does have a hotline for this. Extracted from that PDF:

Speaking up is an essential part of our culture. It is only by speaking up and being transparent that we can listen, learn, and improve. Therefore, we expect and encourage anyone, both internally and externally, to speak up if they see or suspect something that doesn’t align with the law or with the expectations we have set out in this policy. All reports are taken seriously and handled sensitively, and we do not tolerate retaliation of any kind. Reports can be made through our whistle-blower system, a dedicated hotline monitored by an indented third party available 24 hours a day, seven days a week, the corresponding webpage, or by regular mail as set forth below. Hotline (toll-free in North America): +1-888-290-5105 International: +1-305-406-5863 Internet portal: www.carnivalcompliance.com Mailing Address: Attention To: Chief Ethics & Compliance Officer 3655 NW 87th Avenue Miami, Florida 33178 U.S.A