Getting error "UCS-60257" when I try to put in new Credit Card info into PlayOnline.

Does anyone know how to fix this? The Credit Card info is correct.
I Googled the error and it seems it was a very common problem back in 2009 but I can't find any info on how to fix it.

I've been trying to change Credit Cards on PlayOnline all day today and I forgot just how hellish PlayOnline is compared to Western MMO's.