As an investment the CCL shares may not be great for everyone, they are not paying dividends atm, and the stock perk can be withdrawn at anytime, and interest rates are at over 5%
However, they are fairly low and if you cruise a few times a year, they may well be a nice investment.
So uploaded the app yesterday and provided a stock report for the shares, applied for the OBC on the applicable 2 cruises this year and got accepted for both this afternoon. Much quicker and better system as we now have separate evidence that the OBC was applied to the cruise.
They are just trying to keep all the passengers loyal to either brand to keep them cruising. Of course having two slightly different cruise products may seem easy enough, it won't be able to be maintained under the one operation.