Prism,
I don't think the CSMs are going to get a big pay rise and 37% of 25K would not equal 40K anyway! They may just be getting a normal pay rise.
Main crew on M/F may get a small one.
The 37% rate may refer to an uplift to the F/T crew, but 37% of 11K would put these crew on around 15K for doing the job of a purser (whatever it may be called) and that may be where this figure has come from!
I was not given any figures but they are going to get a rise and lets hope for the sakes of all these young aspiring crew that it is a good one, that makes them more happy.