Onboard credit for bringing Carnival more customers?

[iluvkst]

I have a cruise booked and as usual, I always talk my friends into booking rooms too. I would love a credit to my ss card. Is this possible? Has anyone ever gotten a credit for pointing out to Carnival that they brought in more customers for the company?

[BrendaB1]

No. Unless you book as a group with 8 or more cabins.

[cruisergrandma]

The only way this works is if you tell your TA that you want to book a group cruise. You can then earn 1 free berth for each 15 full fare passengers (you then count as passenger 16). You do not get credit for 3rd and 4th person in a cabin. If you do this on a regular basis you should be booking groups - you could be sailing for free!