Welcome back to the Community thread, GKHR. We are pleased that you have given us updates with regard to handling your bank transactions in your QuickBooks Self-Employed. Allow me to provide you with further information regarding this matter.

We appreciate your troubleshooting efforts in resolving your concern, GKHR. Since you've lost some transactions that have attachments, like receipts that you have previously categorised, it would be best to contact our Support Team. They are equipped with the necessary tools to recover your lost information or transactions in QBSE. To reach them, you can follow the steps below:

1. Sign in to your QBSE account.
2. Click the Assistant button at the top.
3. Type Contact Support in the chat box
4. You'll now be provided with support options that are available at that time. 

Moreover, check out these articles for your reference in managing bank transactions moving forward:

• Categorise transactions in QuickBooks Self-Employed
• Delete bank and transaction data in QuickBooks Self-Employed
• Manually import transactions into QuickBooks Self-Employed
• Exclude or delete transactions in QuickBooks Self-Employed

If you have any inquiries regarding QuickBooks, the Community is always at your disposal. We are rooting for your successful year as you navigate the business venture, GKHR!