You must hold a valid provisional driving licence before you get behind the wheel of a car to learn to drive. It is an offence not to hold such a licence and you could find yourself with points on your licence before you get it or a delay in your licence being issued.
Also you should be aware that trying to drive any vehicle without a valid provisional or full licence negates your insurance thus leaving you uninsured whilst driving. This in itself is a criminal offence which can carry a hefty fine or in some instances a custodial sentence.
You can apply for your first provisional driving licence online using the Driver and Vehicle Licensing Agency's (DVLA) website if you
You can apply for your provisional driving licence by completing the D1 application form that is available from the DVLA form ordering service or Post Office branches.
You will also need to enclose original documentation confirming your identity, a passport style signed colour photograph and the relevent fee.
Send your completed application and payment to DVLA, Swansea, SA99 1AD or you may be able to use the premium checking service.
A current list of Driving Licence Fees