I just got off the phone with RCCL. They didn't mention a system glitch this time but tried to convince me initially that the price of $388.22 for a premium package is the 20% off price. This amounts to $47/day instead of the normal $49/day. I went through the math with them and at 20% off we both got a price of $323.79. She tried to book me at this price but the end price always defaulted to $388.22 somehow. Her resolution department told her the discount price was $388.22 and that was all she could tell me. I asked why they'd advertise a 4% off sale as 20%? No answer and certainly out of her control. She was very nice, just couldn't do anything. It's concerning because if someone went to book on my cruise planner not knowing regular prices they'd book at a hardly discounted rate thinking they saved 20%. I'm just going to keep checking my cruise planner periodically to see if anything changes, but it's definitely strange.