Dear Ajax,
Thank you for your e-mail and interest in PS products.
Regarding to your enquiry, please be informed that since this game is not officially released in Singapore, we have no downloadable contents for this game on the Playstation Store. Furthermore, please be informed that add-ons for games are region specific. Therefore, if you currently have a non-Asia version of the game, if the add-ons were released on the Singapore Playstation Store, it might not be compatble.