How to handle a returned check in Benefits Billing?

Summary:

Hello experts,

I'm reviewing Benefits Billing functionality for the first time and looking for feedback and experiences in handling returned checks.

Any recommendations on how to handle returned checks?

Content (please ensure you mask any confidential information):

Once a payment is entered, we cannot back it our or modify and we cannot enter a negative payment amount, so I am unsure how to track that the payment was invalid and total owed needs to be updated. Thankfully the volume of such transactions is low, but I could also see a similar ask to handle an incorrectly entered payment (be it applied to the wrong participant or an incorrect amount keyed).