Welcome to Pixalo
I've been looking into this myself and have found a couple of links that might help.
city and guilds photography course: uk distance learning photography training - ICS Learn
City & Guilds Basic Photography Distance Learning Home Study Course
Distance Learning - photography training uk - photography courses, portrait photography schools, digital photography courses - Barrett and Coe
There are quite a few others around but are very similar. The last link is typical of the sort of site that offers a specific type of photgraphy course.
The C&G courses are not cheap and require access to a darkroom. As my daughter is keen to do the C&G course I'm going to build us a dark room in her loft. Then try to get as much overtime in so that I can afford to pay for it!!!!