Hello,
The problem that you're experiencing is a known issue. We've fixed the
problem internally and are in the process of testing this update, and
will release it as soon as possible.
In the meantime, if you would like a refund, please don't hesitate to
respond to this email. When you do so, please include the name on the
credit card that you used to purchase Airlock.
Thank you for your patience!
David