Driving test cancellations are not guaranteed because we are reliant on people changing or cancelling their tests. For this reason, we are not in control of when a cancellation will appear. However, because we search regularly it gives you a really good chance of finding driving test cancellations.
From looking at your account, I can confirm that we offered you 8 driving tests matching your availability and we changed your test over for you twice.
I hope this helps but please let us know if we can be of any further assistance.