Our family was excited to take advantage of Royal Caribbean's Black Friday deal and booked a vacation for four passengers in an interior cabin, utilizing their Kids Sail Free promotion and a next-cruise voucher. When we received our invoice, it only listed my wife and me. However, upon inquiry, we were assured that our children were included in the charges section.Just a few days before our cruise, I received an email for check-in that only listed my wife and me. Concerned, I called Royal Caribbean and was shocked to learn that our children were never added to the reservation. To include them now, we were asked to upgrade to an entirely different cabin at an exorbitant cost of $3000 or cancel our cruise altogether, just two days before departure.With no other choice, we reluctantly paid for the room upgrade. Upon our return to the US, I called the 'post-cruise' team to discuss the issue further. Despite spending hours on the phone with various departments and being transferred multiple times, even mistakenly to Celebrity Cruises, I was offered inadequate compensation for the forced and unwanted room upgrade. Royal Caribbean's "leadership team" claimed to have listened to the booking call, insisting that I was informed of needing to book a second room for my kids – a statement I found to be entirely false. When I requested to hear the recording, I was told that I would need an attorney to access it.After investing a significant amount of time trying to resolve this matter, the best offer I received was a $900 coupon, which pales in comparison to the cost of the unwanted upgrade. I sincerely hope that this review serves as a warning to others about the potential issues with Royal Caribbean's booking process.The mix-up and the ensuing headache left a sour taste in our mouths, casting a shadow over what was supposed to be a fun and memorable family vacation. We are disappointed with the lack of proper communication and resolution from the company, and it has made us question whether we will book with Royal Caribbean in the future.