In BillQuick, if you receive a bad check on a retainer payment, you can use the following workaround to successfully back out a retainer payment that bounces and then record it as a non-retainer payment. This is a two-step process:
Step 1: Receive a retainer payment, and then delete that payment and deposit.
Step 2: Re-deposit the non-retainer payment and then create an NSF journal entry.