JBO

Booked a cruise November 2023. Got a few discounts for Military/Airline employee (Interline rate). My question is, I booked through a travel agent. I want to keep an eye out the next 8 months to see if the fare changes. Does the "Cruise Fare" usually change along with their sales/discounts? Or is the "Cruise Fare" number a hard number? Reason I ask is I can not get an updated price with my discounts by just going to RCCL website and doing a dummy booking. I can do a dummy booking though and compare the "cruise fare" price on their site and what I have on my invoice.......