I've booked two Yacht Club innercabins on the MSC Bellissima on January 14th. The booking were done directly at the MSC site. Later one of the inner cabin were upgraded to the YC Suite for free and other cabin not. Two weeks ago I mentioned MSC about the differences in the cabins and the next day both cabins were upgraded to YC suites with balcony. No upgrade offerings but just a pleasant surprise.