The LTA train Level 3 coaches in delivering individual lessons, so you can contact a Level 3 (or above) coach to arrange a day/time that fits in for you.
Level 2 or below can do 'Buddy Hitting' to help practice anything you like but as they haven't had the training on private lessons, there would be very limited instruction offered - this should be done by a qualified coach.
Private lessons are available at the following costs (1 hour lesson) it is not necessary to join Hythe ltc to have individual lessons- you will enjoy them so much that you will want to get more involved anyway! :
Level 4 coach £30
Level 3 coach £20
Level 2 coach £15