Voiding a credit card settlement

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I do not want to void the credit card payment, but for some reason I have transactions that were settled on different dates that over-lap a month.  As in, part of the settled transaction hit in July and part in August.  Which means I can't move forward with my reconciliation unless I can void the settlement and re-settle the transactions.  

Any help???  I can't find anything on doing this.  I tried voiding a bank transaction, but Businessworks doesn't seem to allow you to select a credit card settlement to void.

Thanks