Go to:
https://www.gov.uk/apply-first-provisional-driving-licence
To apply you must be:
At least 15 years and 9 months
Be able to read a number plate from at least 20 metres away
Have been given permission to live in Great Britain for at least 185 days
Go to:
https://www.gov.uk/apply-online-to-replace-a-driving-licence
To replace your licence you must:
Be a resident of Great Britain
Not be disqualified from driving for any reason
Pay £20 by Mastercard, Visa, Electron or Delta debit or credit card
Provide your addresses over the past 3 years
Provide your licence number, National Insurance number, and passport number (if you know them)
Go to:
www.gov.uk/view-driving-licence
You will need your:
National Insurance Number
Driving Licence Number
Postcode.
Go to:
www.gov.uk/check-driving-information
You will need:
The last 8 digits of the driving licence
The code they generated using the above link (this code can only be used once and is valid for 15 days)