I signed up to do a course with UoL and let me tell you, you are really thrown in at the deep end.
If you have done A Levels and are used to the structured "Week 1: Do this"; "Week 2: Complete this"; "Read this"; etc. YOU ARE IN FOR A SHOCK
The sign up is all independent; the system is deep and extremely integral. Your point of contact seems to be akin to a 'call centre'. Information is sparse, at best.
I have since signed up for OCA.ac.uk and from what I hear it has more structure; good tutors; and a straightforward system. I will keep you informed how the course goes, but they let you sign up for one unit at a time. For the best distance learning? I think OCA will work out where UoL did not.