Communications level is not appearing?

When you build any level type (Imperial, residential, service, Recreational, etc) the actual result is random. The only way to specify the specific floor to build is to purchase it with Bux.

Other users have experienced the same results as in this instance it took one user 12 imperial floors to get the communications level.

The only way to guarantee which floor you are going to get is by using Imperial Bux and buying it from the Levels section in the menu. On mine(not sure if changes with the number of floors you have) it costs 97 Bux.

Other than that I believe the Imperial floors are random like the rest of the business floors.

If you click "build new level" and choose the option "build specific level" it is possible to buy a communication level for just one bux plus the amount of coins you normally pay for a level. If you want to save up bux, that's cheaper.