Normal
If you wish to pay the additional charge to get a higher cabin category [which, depending on your cruise, may be rather low], talk to whoever booked your cruise. Upgrades you don't pay for are a decision made solely by Carnival [or any cruise line]. You have no input.A 4E cabin is an inside cabin [no window] on the deck you're currently on. In general, most category 4 "inside" cabins are similar. The higher the letter....the higher the deck.
If you wish to pay the additional charge to get a higher cabin category [which, depending on your cruise, may be rather low], talk to whoever booked your cruise. Upgrades you don't pay for are a decision made solely by Carnival [or any cruise line]. You have no input.
A 4E cabin is an inside cabin [no window] on the deck you're currently on. In general, most category 4 "inside" cabins are similar. The higher the letter....the higher the deck.