sorry, english probs.. :) this card give me permant % , just for 1 day or 1 item in normal shops or CS ? a tip would be great ^^

1. You need to keep the card in your inventory (best to lock it). It does NOT get used up.
2. You get the discount in all regular NPC shops (these shops)
3. It does NOT count for CSC or any other special currency shops. It does NOT count in Subeautique.
4. If you get the random 15% discount buff it stacks with the card - if you look at the purchase result page it will show both discounts.
5. It does NOT stack with other discount cards - if you have 2 cards in inventory, it will only use the biggest card.
6. It is permanent while the card is in your inventory - if you accidentally put your card in your shop, vault, delete or donate it, you no longer get the discount.

oooh, thanks for the help, so lock and leave like the Lizard Minion Trap? and if i have this discount both will be counted? sorry, my translator shows me strange things, so better i ask again ( what a cute violin mouse <3 .. )

yes, like the lizard minion trap :).

Yes, the random buff you get when you buy stuff and the card do both count.

[edit] Thanks! the mouse is this item:

tysoomuch, u see, so long here but i have learned something new... <3