RITZER82, it is currently the summer holiday period so don't be too surprised if you don't get replies to emails or calls! I am on the distance learning course at London Met as well and I can see why you are not happy, but remember that a distance learning course puts you in charge of your own learning. You are right that there are not perfectly clear instructions, so it is important to get in touch with the course leader to sort out any problems and get your questions answered.
still awaiting for my progress test to be marked before I move on to my next chapter
As far as I am aware the progress tests are all online, where it gives you an instant response. It is easier (and I think most students do this) to read an entire book and then take all the progress tests afterwards.
I feel that they have wasted my time and effort and should of spent that extra and enrolled with a professional school who specialise in distance learning and don't give you the impression of feeling isolated.
I don't think there is a more expensive provider out there for DL, but if I were you I would wait until the new term starts in September and then call the course leader and get all your problems sorted out. I think you've just chosen a bad time to start.
Feel free to PM me if you need any further help or advice. Good luck!