We are very sorry to have to cancel your order! We try to fulfill every single order we receive, but on rare occasions, we may not be able to do so. In that case, we will inform you as soon as possible via email, and we always include the reason for the cancellation.
As there was no charge, the authorization typically lasts from 3-7 days, depending on the policy of your bank.
Please refer to Why are multiple charges appearing on my debit/ credit account?