According to the BBC, learner drivers cannot amend their tests without cancelling their booking. 

However, driving schools are able to access a different part of the DVSA booking website which lets them snap up as many sessions as they need. 

This is intended to allow them to book tests for several pupils while using the same contact number and email address. 

But with no official documentation required and a quick sign-up process, it appears to be easy for the system to be abused. 

You can get alerts for when tests are available and book multiple tests on the driving school account. You can even swap tests between candidates. 

This would allow instructors to purchase and sell tests - even without the provisional licence holder being aware.  

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