BaldingCruiser

I have received a promotion from Cunard for 10% off of 2024 cruises if booked before 12 February. I booked a cruise in January and missed out on the discount. I have contacted both my agent and Cunard direct to ask for the discount but have been turned down (it does say ...may not be applied retrospectively to existing bookings). I just wondered if anyone had any experience of getting these discounts applied to their bookings in the past and if so how to do it. Thanks in advance. Steve