Write-off instead of cancelled project invoice by mistake

We have a situation where we have a time and material project where we billed a customer for a month's worth of work.  The bill rate was wrong, so we should have Cancelled the invoice so we could update the bill rate and then re-bill.  However, we accidentally Wrote-off the invoice.  Is there a way we can re-bill all of the time and material lines since we did a Write-off instead of a cancel on the invoice?  I cannot think of a way to re-bill the customer and show all of the detail for the time worked.

Thanks,

Lisa