Hello, My acc name is Kuso Yaro, I am from server S-917. There has been an error on cave key rebate. I used 50 cave keys but I didn't get a spinning chance. I already used 500 before I use another 50. When I looked into the cave key rebate panel, it show only 520 key were used. It should be 550. Thank you for your time.

Here is the ss of my rewards for 50 keys.

Here is my spin attempts after I used 50 keys.