I had a case on one sailing where others on the Roll Call were saying their CVP was able to reprice their suite when all suites had been sold out for quite some time. My TA said he couldn't see the current rates on his system. After multiple people also reported being repriced he was able to contact someone at Celebrity and eventually got it repriced on 2 sailings, saved $2250.
It appears that Celebrity reps can see the prevailing rates. I suspect they are not supposed to reprice but it appears it does happen. Not sure TA's have the ability.