Bookings Direct is an online-only business without telephone support. They do not advertise any customer service phone number on their website; however, you can still make a customer service enquiry using their contact form:

Support may also be sought by writing to the company’s office in London – this is their postal address:
Booking Services, Kemp House, 152 City Road, London, EC1V 2NX. is a website which facilitates the booking and attendance of driving theory and practical tests at the DVSA. These tests are hosted at a variety of centres up and down the UK.