The offers are refreshed for free, every four hours. Different goods have different chances to appear. To find out when the next refresh will happen, check the timer above the instant refresh button.
If you don’t want to wait, you can refresh the offers for crystals.
If you don’t want to wait, you can refresh the offers for crystals.
If you want to have more items on offer at the Wondershop, you can open additional slots for crystals.