In anticipation of the HD expansion I've been trying to buy the 1.6k pack and the 600 pack of TP. After a few hours I've managed to buy the big pack through the website (already at a higher price then in-game and 50 tp less that I'll have to grind). Now unfortunately the 600 pack is not available through the website and I'm not going to buy 1k extra that will just stack up with my monthly points.
Is turbine aware of the issues with the store and are they working on them? Other people seem to be unable to buy tp aswell and complain their balance isn't updating.