You can book a taxi via following methods:
Online: http://www.tnccars.co.uk/
Telephone: +44 780 757 4118
Yes, it's possible to pre-book a taxi with Tnc Cars Limited, please contact the company.
Tnc Cars Limited has both regular and air-conditioned taxis, please mention your preference at the time of booking.
Please contact the company on their helpline number to make any changes.
Generally drivers will meet the passengers at the arrivals on airport pick ups but do check with the company.