A customer paid online Echeck to a listed closed account that was still listed in QB online.  I have gone through these steps.  But there is no way to reverse the transaction or refund the customers account.      

Void or fully refund a transaction

1. Sign in to your  Quickbooks account.
2. From the Processing Tools drop-down, select Reverse a Transaction.
3. Fill out the necessary fields and select Search.
4. Select the transaction(s) you want to refund, then Submit.

Alternate method to Reverse or Void a sale

1. Sign in to your 
2. From the Activity & Reports drop-down, select Transactions.
3. Enter the appropriate date range and select Search.
4. Select the Transaction ID or the transaction you want to reverse.
5. Select Reverse (Void/Credit).
6. Select the checkbox for the desired transaction, then Submit.

Partially refund or credit a transaction

1. Sign in to your 
2. From the Processing Tools drop-down, select Reverse a Transaction.
3. Fill out the