Might I say, respectfully, that I don't think MT know what they are talking about!

Yes, 11560 now. But as you saw from my article, for the new B13 transmission schedule there is a registration with HFCC as 9940 kHz 0300-0600. Once B13 gets underway, we'll be able to confirm if this is indeed the new freq.
Regards from the Land of OZ!
Rob VK3BVW