Where is the "Discount"?

"Discounts
The following items are normally priced at 2,000 NCoin, but for a limited time only they are available at the low price of just 1,000 NCoin!"

Limited Time Offer: December 5 - December 19
Emerald Weapon Dagger Appearance Stone: Transform your weapon into a gorgeous Emerald item!

but

in ingame Store the Emerald Appearance stone is still costing 2000coing

what is this?

The discount is for the Dagger weapon appearance stone, not the Dual Daggers.

The discount is for the Dagger weapon appearance stone, not the Dual Daggers.

would be nicer if it was for all weapons.