If you bought the Novanite Tabor that was radiantly enchanted for 150PP, this has been refunded through PP. It was not supposed to be 150PP and was reported. This is a 400PP radiant item, much like the others.
The proper items are now at the shop with both the brill for 150PP and radiant 400PP variant. If you bought the Radiant NT for 400PP or Brill NT for 150PP which was added a couple days ago, you are in the clear. (Don't worry, I have logs on who bought it/etc.)