is anybody know how i can upgrade the room on board of the carnival destiny thank you
and is anybody know about a card for drinks too buy on this ship

Too upgrade you just need to get ahold of your travel agent. They do sell drink cards on board the ship. They have them for children and adults.

The soda card is approx. $38 for an adult. You will be given a separate card that you will need to present to the bartender and they will give you a soda out of a plain plastic cup each time.
Also, they did sell sovenier cups for $6 additionally if you would prefer to use that for the week. It is definitely worth it if you like soda!
Have Fun!