Hmm unless she was owed more money by SM according to the agreement and it was delayed/withheld, I think she won't have a case. At the same time agencies like throwing their weight around so it wouldn't surprise me. It's best to wait for an official statement.Pretty cut and dry is royalty law.
That song is what 3 years old?
sounds like she has an at best disputed claim with the secondary agency.
but like all folks looking for a pay day goes for the biggest fish or deepest pockets how ever you look at it..
if she has a case pretty easy to prove in the correct court.