Can you modify your reservation on line?

[Mjasp]

I booked a balcony cabin and want a Havana Cabana balcony cabin, I am a few weeks away from sailing. 

If a Havana Cabana balcony becomes available, can I modify my reservation online or do I need to call Carnival? 

 

If I can do it online, can you please let me know the steps to do it. 

 

Thanks

[siestakeys04]

You have to call carnival

[shof515]

40 minutes ago, siestakeys04 said:

You have to call carnival

or call the travel agent if you booked with one. carnival will not help you if you book with a travel agent

[siestakeys04]

3 hours ago, shof515 said:

or call the travel agent if you booked with one. carnival will not help you if you book with a travel agent

👆🏾This I am going on the assumption you booked with pvp with carnival