NCFail strikes again!

You guys are totaly lacking of any fix-ability,seriously?

From patch notes :
You have a new Joyful Birthday Pack that you can get on your character's birthday.
When you open the Joyful Birthday Pack you received by mail after 4/22 (Wed), you can get Happy Birthday Potion x10 and a Birthday Hat.
A Happy Birthday Potion recovers 3/4 of Vitality gauge.
If you still have an existing Birthday Present Pack it will not be deleted from the character and will still give the 4-hour Birthday Vitality Potion x3, Birthday Cake, and Birthday Hat.

Changed the usage effect of ‘Birthday Cake’ item as follows.
Maintained for 5 minutes and replenished the energy of the near party member for every predetermined time.

In game :
Doing birthday still give you old rewards.
Plus,into inventory the birthday cake says "recover vitality at a set rate",but if you use the cake the effect is the previous one (mantaining vitality)

So...after i waste my birthday cake...are you gonna mind give it back 'cuz it's a ingame bug or i've lost it for nothing? =__=