Losing credits in challenge battles.

Hey @ba8361 thanks for reaching out. Given that you shouldn't loose any medals in Challenge Battles that seems a bit odd but it may be that the servers at one point were out of sync and gave you extra medals at one state and are correcting it. Does this happen frequently? If so how many battles would you say? If you can send me your Persona ID, found in Settings > About, I can look into this further. Thanks!