Unfortunately that has not worked, I am still getting an error saying transactions are detected as duplicates - but they 100% are not duplicates because they are not in the same timeframe as ones already imported by the bank
Hi there, AbbieS.
Thanks for getting for letting us know the results of the steps that you've performed to fix the duplicate transactions on QuickBooks Self-Employed (QBSE).
Since the duplicates continues to occur, I suggest reaching out to our support for further investigation. They can look into your account closely making sure to prevent duplicates in the future.
You can reach them by following the steps below:
- From the Assistant tab, type or say Talk to a human.
- If you want to connect with us directly, type or say Talk to a human.
- Then select your preferred support method: Message an agent (Live chat), Call an agent, or Get a callback.

If you need other references for tips on your future task with QBSE, you can check out these helpful links:
The Community is always open if you have other banking questions. I'll be around to help. Wishing you a great day ahead!