There seems to be a problem with the wish stones being given for leveling up characters to level 13+. The screen shows that 5 stones are rewarded, but none are actually added.
We're sorry to hear the Wishin' Stones hasn't appeared in-game for you. Please tell us how you acquired the stones (Daily bonus, clearing elements, etc.). Also, did you have any Wishin' Stones prior to the 5 stones you did not receive? If so, how many were on the account? Did you experience any others issues on the account prior to the 5 missing stones?
These stones were supposed to be coming when Skylanders reach level 13 and above. Several people on other blogs have also noticed that, while the message indicates that the stones are given, the stone count does not increase. The stones from other sources appear to be coming normally.