Let's fix the issue with your online banking, lilianacortez7.
It looks like your credit card is associated with multiple cards. In QuickBooks Online, you need to consider how your bank sends the downloaded transactions.
If transactions are downloaded to one account, then connect only the parent one. If they download to the individual accounts, connect the sub-accounts, not the parent one.
Check out this link to learn how to organize your credit card accounts: Create subaccounts in your Chart of Accounts in QuickBooks Online.
When it’s time to reconcile, you only need to reconcile the parent account because all transactions in the subaccounts roll up into it.
If you need further help reconciling, see how to reconcile accounts for a step-by-step guide.
Let me know if you need additional information by commenting below. Just tag my name, and I'll get back to you.