Thanks for joining the Community space, @Alex891.

Since the information you've shared is correct based on how to match a journal entry as mentioned by my colleague above, I'd suggest contacting our Customer Support Team. They can pull up your account securely and further investigate why you're unable to match it to other bank transaction.

Here's how to reach them:

1. Go to the Help menu at the upper right.
2. Select Contact Us.
3. Enter your concern.
4. Click Let’s talk, then  Get a callback. 
5. Type in your contact info.
6. Select Confirm my call.

Please take note that because of the ongoing pandemic, our phone and chat support lines are only open every Monday-Friday from 6:00 AM to 6:00 PM Pacific Time. They're also open between 6:00 AM to 3:00 PM Pacific Time on Saturdays. Here's a guide for more details: Support Hours And Types.

For reference on how to match, add and review transactions in QuickBooks, you can click this article:  Matching and Categorizing Bank Transactions. 

Once done, it's a great idea to reconcile your account monthly. This ensures your account in QBO matches your bank statement. To learn more about this process, visit this article: Reconciling An Account.

Please reach out to me if there's anything else you need. I'd be happy to help.