I've got some steps to remove customers credits from an invoice or bill in QBDT, @Orsefski Painting.

If you're trying to remove a credit from an invoice, here's how:

1.  Press Ctrl + H to display the transaction history.
2. Double-click the invoice, then select Apply Credits.
3. On the Previously Applied Credits window, clear the selection for credit.
4. On the Apply Credits window, hit Done.
5. On the invoice, click Save and Close.

However, if it's a credit from a bill, here's how:

1. Find the vendor credit, then select the Bill radio button to change the transaction type to bill instead of credit.
2. Select Save & Close.
3. Bring up the resulting bill and change the transaction back to credit by selecting the Credit radio button.
4. Hit Save and Close, then select Yes when prompted about changing the transaction.

For more insights, check out this article to guide you with removing credit from an invoice or bill.

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