Thanks for joining the Community, @hhbookkeeper.
Based on the details you provided about your client's reconciliation, I can inform you that the two deposits in the banking tab won't match a single deposit in QuickBooks Online. This means if you want them to match, you'll need to recreate what happened in real life by making the single deposit into two separate deposits. Afterward, you can match the two individual deposits to the two separate deposits you made.
I'm only a comment away if you have any questions or concerns. Best wishes!