Won a battle but notice opponents report different

Hey @nncheung, thanks for reaching out! This is a known issue that occurs from time to time when you and you're opponent go out of sync during battle, either due to a disconnect or you are both running slightly different versions of the game, one has downloaded the latest game files and the other has not. Simply reinstalling the game should help with this! Be sure to have you're account linked to email, Facebook and/or Game Center/Google Play Games. Hope this helps!