Thank you for reaching out to the Community. I'm here to help you sort this out, @trcddc1990.. 

In QuickBooks Online, the transactions are downloaded automatically from your bank. We can exclude and delete the duplicate transactions to correct it.  

I'll guide you on how to Exclude the Transactions:  

1. From Banking, select the specific bank, and then under For Review tab. 
2. Tick the transactions you want to exclude, then under Batch actions then drop-down arrow and then Exclude selected. 
3. Select the Excluded tab and checkbox the transactions you want to delete.
4. From Batch actions drop-down and select Delete.  
5. A message will pop up asking Are you sure? These transactions will not be recoverable, and then Select Yes.  

Once transactions excluded, these items are no longer reported as part of your business finances and will not appear in any associated account registers or reports.  

I've got a great article for you that provides additional details on excluding transactions. You can view it by clicking this link: How to exclude expenses from downloaded bank transactions.  

That's it. This should help you point in the right direction. Let me know if you have further questions. I'll be here to answer them. Have a great day!