Why did you book a cruise without knowing the cabin number?
Dont ask us, the crystal ball is out of commission at present!!We are fellow cruise enthusiasts not soothsayers! Try asking the travel agent with whom you booked!
Every time I have booked a cruise the first question I ask is (whilst having the ship's deck plan open in front of me) "is cabin number **** available"?
For your agent to take your money without sorting out your cabin number when you booked is gross negligence on their part. Next time try a reputable agent.
Further to my suggestion below I should have pointed out that you need to know your cabin number for embarkation, otherwise without that number on your case(s) how will the porters on the ship know the cabin number for you to be re-united with all your clothing etc.???
If I were you I would be slightly concerned as to who you are dealing with and whether your cruise will ever take place.