Welcome aboard to the Community, @Janet1981.
Let me help you resolve the issue concerning the refund to the credit card in QuickBooks Online.
If you're referring to the downloaded transactions in your bank feeds, the data will depend on the information shared by your financial institution. If there are any duplicates, I recommend excluding them from the For Review section.
Here's how:
- Go to the For Review tab.
- Check the box next to each transaction you want to exclude.
- Select the Batch action drop-down menu, and then select Exclude selected.

I've also included some articles in case you need some ideas about bank feeds, like how to categorize or match, as well as some details about fixing bank errors:
Please know that the Community has your back if you need assistance. It’s a place for you to connect with experts and peers. Feel free to post a question, get answers, share tips, ideas, and more.