Hi LAGC (and Team Inuit), 

here is a way to get around the issue of not being able match two bank transactions to a single QB transactions. I had the same issue with a bank deposit which was recorded properly in QB, but at the bank (due to other reasons) split into two separate transactions. Brining the two together and matching with the single Bank Deposit was impossible at first, except for this workaround: 

1. Say the intended deposit was 2,000 and split into 1,200 and 800 at the bank.

2. Goal is to match the two bank transactions to the 2,000 deposit
3. Edit the deposit, "pretend" that a cash-back occurred, of 800. Choose another account, e.g. the Petty Cash account, as the "cash goes to" account. The deposit total amount is now 1,200.

4. Create a 2nd "deposit" for the balance of 800, from the Petty Cash account to the bank account

5. Go back to Banking > For Review

6. Both transactions should now be matchable to the two deposits. 

I am assuming a similar "cash detour" will also work with split Credit Charges.