Don't spend more than you have to.

Learner drivers booking their theory or car practical driving tests are being warned about the extra cost involved if you use a bugus or copycat website. If you type the names of some popular government services into search engines, some of your search results might be ads for sites that offer a service you could get for free (or for much less) on GOV.UK, the government’s own website.
Driving test bookings:
Some of these copycat websites offer to book theory and practical driving tests, and look like they might be official, but they actually charge a premium for their services.
Some websites charge:

• up to £30 for just booking a test, on top of the driving test fee itself
• a ‘pass protection’ fee with the promise of a free retest that very few customers actually qualify to use

Copycat websites don’t let you pick an actual appointment, and don’t give you instant confirmation of your booking. You can find out more by visiting www.gov.uk or talking to your instructor prior to booking.