Resources packs are missing from the DLC page in Dead Space 3. How can I spend m

As you know, the game has a mechanism that allows you to earn ration seals. These seals can then be used to buy resources packs from within the game, which give the player with some resources and some "MK-V" parts to upgrade your weapons. The advantage being that the "MK-V" parts, unlike their normal counterparts, have extra stats bonus. site

However, many PC players (both on Steam and off Steam) have experienced problems with the ration seals: they can't spend them.

They're supposed to be purchasable with real money or with ration seals. But for some reasons, for many players, the ration seals don't appear among the list of DLCs anymore.

Is there a way to fix this issue and spend ration seals to purchase resources packs as intended?