Hello there, AsapDrains27. 

You can pull up its register if you used an expense account to write off a bad debt. Let me show you how: 

1. From the the Accountant menu select Chart of Accounts. 
2. Type in the search field and select the bad debt account. 
3. Click the drop-down arrow beside Reports. 
4. Select QuickReport. 

If you used a credit memo, you can run the Transaction List by Date. Here's how: 

1. Go to the Reports menu. 
2. Select Accountant & Taxes. 
3. Click Transaction List by Date. 
4. Select the Customize Report button. 
5. If you've entered a memo in the transaction, type and select Memo in the Columns section. 
6. Click the Filters tab and enter Transaction Type. 
7. Select Credit Memo from the list. 
8. Click OK.

You can check out the customize reports article which helps you remove and add filters you need. 

If you have further questions, you can always post them here.