I know alot of people have Japanse PSN accounts but has anyone ever used their credit card to actually buy something from it? 

I was just thinking about how people who imported FFXIII would be able to play the DLC~ 

Anyone have experience buying stuff off of J PSN?

Didn't they already say they're not releasing DLC for FFXIII? o.O

And you'd need to import some JP PSN Cards from the internet, or I'd assume so.

they said the content that they cut off as unecessary during development is not being released as DLC, but I believe they are going to be releasing DLC for it.

JPSN cards eh...didn't think of that

AFAIK some people tried and their credit cards didn't work.
So JP PSN cards from ebay might be only hope.

my credit card worked fine on the hong kong psn. (i'm from europe btw)