please help? Learning Campaign Chapter 2?

hallo, this is probably dumb of me to not figure out but I've been trying to get to 23 rooms and I haven't been able to without getting rid of at least one of the two deluxe rooms I was instructed to make (it had said to make another deluxe room after putting the queen size bed in the first one).. I've started the scenario over again several times, but I still can't figure it out.
What am I missing? help?

Nevermind, I found the solution.

so what's the trick!? I am stuck there myself?