No, WipeDrive does not consume a license if the erasure was not successful, cancelled or stopped for any reason.
It will even not consume a licenses if the smart test, prior to the erasure, will fail.
WipeDrive does create a log/report, but with a failed erasure status.
If you need more information, please contact us via one of below options.
Our official support hours are 8:00 am to 16:30 pm, after those hours emailing us or submitting a ticket would be the best option.