I have recently integrated izettle with quickbooks - it is presenting the card sales data in a different way to the bank feed, so they dont match and are counted twice!

I'm here to help you sort this out, CwrwFi.

QuickBooks Online is dependent on the data that the izettle processor transmits. The system will post the transactions the same way your third-party service provider created them.

Since these are imported transactions, I'd suggest getting in touch with izettle to check on other ways of sending your bank statements to QuickBooks.

In the meantime, you can exclude the transactions that are counted twice on the bank feeds. Here are the steps to complete the process:

1. Click Transactions in the left panel and choose Banking.
   
   
2. In the For Review tab, select the transactions that are counted twice.
3. Tap on the Exclude button.
   
4. Go to the Excluded tab, select the transactions.
5. Hit the Delete button.
   

You might find this article interesting: Tips for Working in QuickBooks Online’s Bank Feeds: Matching Transactions. This will provide you tips and outlined steps on how to manage your bank transactions as well as the reasons why QuickBooks may not recognize a match.

Feel free to drop me a reply below if you need further assistance about this topic, I'm always here to keep helping. Have a good one.