Hello there, Lori H1,

There might be a recurring template, and sending the Email Receipt manually resulted to duplicate receipts.

Here's how to check it on QuickBooks:

1. Click Reports.
2. In the "Find report by name" field, enter Recurring Template List.
3. Select Customize.
4. On the Customize report window, select Filter, then the Name checkbox.
5. In the Name field, select the customer's name.
6. Select Run report.

If confirmed that there isn't a template, I recommend contacting our QuickBooks Merchant support to check on your account.

Stay in touch with me if there's anything else I can help you with.