I didn't have that problem.
1) Check the Hamster Kombat website or social media: Often, developers will announce known bugs and fixes on their official channels. Look for patch notes, bug reports, or community forums related to Hamster Kombat.
2) Search online forums and communities: Search online communities dedicated to Hamster Kombat or even general gaming forums. See if other players have reported similar issues with coin counting in combos.
3) Report the bug: If you can't find any existing information about the bug, consider reporting it to the Hamster Kombat developers directly. They might have an in-game bug reporting system, a dedicated email address, or a forum for such reports.